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Segmentation fault in SSL_check_chain

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2020-1967

Published

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).

Source published
21 Apr 2020 13:45:15 UTC
Source modified
8 Oct 2026 21:03:24 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

euvd · EUVD-2021-1780

Published

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Apr 21, 2020, 1:45:15 PM

dateUpdated: Oct 8, 2026, 9:03:24 PM

12 related source bulletins · separate from aliases

WID-SEC-W-2023-3080: OpenSSL: Schwachstelle ermöglicht Denial of Service

CVE-2020-1967

SUSE-SU-2020:2041-1: Security update for rust, rust-cbindgen

CVE-2020-1967

openSUSE-SU-2024:11359-1: cargo-1.54.0-1.2 on GA media

CVE-2018-1000622 · CVE-2019-12083 · CVE-2020-1967

openSUSE-SU-2020:0933-1: Security update for rust, rust-cbindgen

CVE-2020-1967

openSUSE-SU-2024:11360-1: cargo1.53-1.53.0-2.5 on GA media

CVE-2018-1000622 · CVE-2019-12083 · CVE-2020-1967

SUSE-SU-2020:1058-1: Security update for openssl-1_1

CVE-2020-1967

openSUSE-SU-2020:0945-1: Security update for rust, rust-cbindgen

CVE-2020-1967

WID-SEC-W-2026-0205: Oracle MySQL: Mehrere Schwachstellen

CVE-2020-11080 · CVE-2020-11996 · CVE-2020-13934 · CVE-2020-13935 · CVE-2020-14672 · CVE-2020-14760 · CVE-2020-14765 · CVE-2020-14769 · CVE-2020-14771 · CVE-2020-14773 · CVE-2020-14775 · CVE-2020-14776 · CVE-2020-14777 · CVE-2020-14785 · CVE-2020-14786 · CVE-2020-14789 · CVE-2020-14790 · CVE-2020-14791 · CVE-2020-14793 · CVE-2020-14794 · CVE-2020-14799 · CVE-2020-14800 · CVE-2020-14804 · CVE-2020-14809 · CVE-2020-14812 · CVE-2020-14814 · CVE-2020-14821 · CVE-2020-14827 · CVE-2020-14828 · CVE-2020-14829 · CVE-2020-14830 · CVE-2020-14836 · CVE-2020-14837 · CVE-2020-14838 · CVE-2020-14839 · CVE-2020-14844 · CVE-2020-14845 · CVE-2020-14846 · CVE-2020-14848 · CVE-2020-14852 · CVE-2020-14853 · CVE-2020-14860 · CVE-2020-14861 · CVE-2020-14866 · CVE-2020-14867 · CVE-2020-14868 · CVE-2020-14869 · CVE-2020-14870 · CVE-2020-14873 · CVE-2020-14878 · CVE-2020-14888 · CVE-2020-14891 · CVE-2020-14893 · CVE-2020-1730 · CVE-2020-1967 · CVE-2020-8172 · CVE-2020-8174 · CVE-2020-9484

SSA-108696: SSA-108696: Multiple Vulnerabilities in SIDIS Prime before V4.0.400

CVE-2019-19135 · CVE-2020-1967 · CVE-2020-1971 · CVE-2022-0778 · CVE-2022-29862

openSUSE-SU-2024:11127-1: libopenssl-1_1-devel-1.1.1l-1.2 on GA media

CVE-2006-2937 · CVE-2006-2940 · CVE-2006-3738 · CVE-2006-4339 · CVE-2006-4343 · CVE-2006-7250 · CVE-2007-3108 · CVE-2007-5135 · CVE-2008-0891 · CVE-2008-1672 · CVE-2008-5077 · CVE-2009-0590 · CVE-2009-0591 · CVE-2009-0789 · CVE-2009-1377 · CVE-2009-1378 · CVE-2009-1379 · CVE-2009-1386 · CVE-2009-1387 · CVE-2010-0740 · CVE-2010-0742 · CVE-2010-1633 · CVE-2010-2939 · CVE-2010-3864 · CVE-2010-5298 · CVE-2011-0014 · CVE-2011-3207 · CVE-2011-4108 · CVE-2011-4576 · CVE-2011-4577 · CVE-2011-4619 · CVE-2012-0027 · CVE-2012-0050 · CVE-2012-0884 · CVE-2012-1165 · CVE-2012-2110 · CVE-2012-2686 · CVE-2012-4929 · CVE-2013-0166 · CVE-2013-0169 · CVE-2013-4353 · CVE-2013-6449 · CVE-2013-6450 · CVE-2014-0076 · CVE-2014-0160 · CVE-2014-0195 · CVE-2014-0198 · CVE-2014-0221 · CVE-2014-0224 · CVE-2014-3470 · CVE-2014-3505 · CVE-2014-3506 · CVE-2014-3507 · CVE-2014-3508 · CVE-2014-3509 · CVE-2014-3510 · CVE-2014-3511 · CVE-2014-3512 · CVE-2014-3513 · CVE-2014-3567 · CVE-2014-3568 · CVE-2014-3569 · CVE-2014-3570 · CVE-2014-3571 · CVE-2014-3572 · CVE-2014-5139 · CVE-2014-8275 · CVE-2015-0204 · CVE-2015-0205 · CVE-2015-0206 · CVE-2015-0209 · CVE-2015-0286 · CVE-2015-0287 · CVE-2015-0288 · CVE-2015-0289 · CVE-2015-0293 · CVE-2015-1788 · CVE-2015-1789 · CVE-2015-1790 · CVE-2015-1791 · CVE-2015-1792 · CVE-2015-1793 · CVE-2015-1794 · CVE-2015-3193 · CVE-2015-3194 · CVE-2015-3195 · CVE-2015-3196 · CVE-2015-3197 · CVE-2016-0701 · CVE-2016-0702 · CVE-2016-0705 · CVE-2016-0797 · CVE-2016-0798 · CVE-2016-0800 · CVE-2016-2105 · CVE-2016-2106 · CVE-2016-2107 · CVE-2016-2109 · CVE-2016-2176 · CVE-2016-2177 · CVE-2016-2178 · CVE-2016-2179 · CVE-2016-2180 · CVE-2016-2181 · CVE-2016-2182 · CVE-2016-2183 · CVE-2016-6302 · CVE-2016-6303 · CVE-2016-6304 · CVE-2016-6306 · CVE-2016-7052 · CVE-2016-7055 · CVE-2016-7056 · CVE-2017-3731 · CVE-2017-3732 · CVE-2017-3735 · CVE-2017-3736 · CVE-2017-3738 · CVE-2018-0732 · CVE-2018-0734 · CVE-2018-0735 · CVE-2018-0737 · CVE-2018-0739 · CVE-2019-1543 · CVE-2019-1547 · CVE-2019-1549 · CVE-2019-1551 · CVE-2019-1563 · CVE-2020-1967 · CVE-2020-1971 · CVE-2021-23840 · CVE-2021-23841 · CVE-2021-3449 · CVE-2021-3450 · CVE-2021-3711 · CVE-2021-3712

ICSA-24-046-02: Siemens SIDIS Prime

CVE-2019-19135 · CVE-2020-1967 · CVE-2020-1971 · CVE-2022-0778 · CVE-2022-29862

WID-SEC-W-2024-0794: Dell ECS: Mehrere Schwachstellen

CVE-2018-18074 · CVE-2020-10663 · CVE-2020-10672 · CVE-2020-10673 · CVE-2020-10735 · CVE-2020-10968 · CVE-2020-10969 · CVE-2020-11111 · CVE-2020-11112 · CVE-2020-11113 · CVE-2020-11612 · CVE-2020-11619 · CVE-2020-11620 · CVE-2020-11979 · CVE-2020-12762 · CVE-2020-12825 · CVE-2020-13956 · CVE-2020-14060 · CVE-2020-14061 · CVE-2020-14062 · CVE-2020-14195 · CVE-2020-15250 · CVE-2020-1945 · CVE-2020-1967 · CVE-2020-1971 · CVE-2020-24616 · CVE-2020-24750 · CVE-2020-25649 · CVE-2020-25658 · CVE-2020-26116 · CVE-2020-26137 · CVE-2020-26541 · CVE-2020-27216 · CVE-2020-27218 · CVE-2020-27223 · CVE-2020-28366 · CVE-2020-28493 · CVE-2020-29509 · CVE-2020-29511 · CVE-2020-29582 · CVE-2020-29651 · CVE-2020-35490 · CVE-2020-35491 · CVE-2020-35728 · CVE-2020-36179 · CVE-2020-36180 · CVE-2020-36181 · CVE-2020-36182 · CVE-2020-36183 · CVE-2020-36184 · CVE-2020-36185 · CVE-2020-36186 · CVE-2020-36187 · CVE-2020-36188 · CVE-2020-36189 · CVE-2020-36516 · CVE-2020-36518 · CVE-2020-36557 · CVE-2020-36558 · CVE-2020-36691 · CVE-2020-7238 · CVE-2020-8840 · CVE-2020-8908 · CVE-2020-8911 · CVE-2020-8912 · CVE-2020-9488 · CVE-2020-9493 · CVE-2020-9546 · CVE-2020-9547 · CVE-2020-9548 · CVE-2021-20190 · CVE-2021-20323 · CVE-2021-21290 · CVE-2021-21295 · CVE-2021-21409 · CVE-2021-23840 · CVE-2021-23841 · CVE-2021-2471 · CVE-2021-25642 · CVE-2021-26341 · CVE-2021-27918 · CVE-2021-28153 · CVE-2021-28165 · CVE-2021-28169 · CVE-2021-28861 · CVE-2021-29425 · CVE-2021-30560 · CVE-2021-3114 · CVE-2021-33036 · CVE-2021-33194 · CVE-2021-33195 · CVE-2021-33196 · CVE-2021-33197 · CVE-2021-33503 · CVE-2021-33655 · CVE-2021-33656 · CVE-2021-3424 · CVE-2021-34428 · CVE-2021-3449 · CVE-2021-3450 · CVE-2021-3530 · CVE-2021-36221 · CVE-2021-36373 · CVE-2021-36374 · CVE-2021-3648 · CVE-2021-36690 · CVE-2021-3711 · CVE-2021-3712 · CVE-2021-37136 · CVE-2021-37137 · CVE-2021-37404 · CVE-2021-37533 · CVE-2021-3754 · CVE-2021-3778 · CVE-2021-3796 · CVE-2021-3826 · CVE-2021-3827 · CVE-2021-38297 · CVE-2021-3872 · CVE-2021-3875 · CVE-2021-3903 · CVE-2021-3923 · CVE-2021-3927 · CVE-2021-3928 · CVE-2021-3968 · CVE-2021-3973 · CVE-2021-3974 · CVE-2021-3984 · CVE-2021-4019 · CVE-2021-4037 · CVE-2021-4069 · CVE-2021-4104 · CVE-2021-4136 · CVE-2021-4157 · CVE-2021-4166 · CVE-2021-41771 · CVE-2021-4192 · CVE-2021-4193 · CVE-2021-4203 · CVE-2021-42567 · CVE-2021-43797 · CVE-2021-44531 · CVE-2021-44532 · CVE-2021-44533 · CVE-2021-44716 · CVE-2021-44878 · CVE-2021-45078 · CVE-2021-46195 · CVE-2021-46828 · CVE-2021-46848 · CVE-2022-0128 · CVE-2022-0213 · CVE-2022-0225 · CVE-2022-0261 · CVE-2022-0318 · CVE-2022-0319 · CVE-2022-0351 · CVE-2022-0359 · CVE-2022-0361 · CVE-2022-0392 · CVE-2022-0407 · CVE-2022-0413 · CVE-2022-0561 · CVE-2022-0696 · CVE-2022-0778 · CVE-2022-1184 · CVE-2022-1245 · CVE-2022-1271 · CVE-2022-1292 · CVE-2022-1381 · CVE-2022-1420 · CVE-2022-1462 · CVE-2022-1466 · CVE-2022-1471 · CVE-2022-1586 · CVE-2022-1587 · CVE-2022-1616 · CVE-2022-1619 · CVE-2022-1620 · CVE-2022-1679 · CVE-2022-1705 · CVE-2022-1720 · CVE-2022-1729 · CVE-2022-1733 · CVE-2022-1735 · CVE-2022-1771 · CVE-2022-1785 · CVE-2022-1796 · CVE-2022-1851 · CVE-2022-1897 · CVE-2022-1898 · CVE-2022-1927 · CVE-2022-1962 · CVE-2022-1968 · CVE-2022-1974 · CVE-2022-1975 · CVE-2022-20132 · CVE-2022-20141 · CVE-2022-20154 · CVE-2022-20166 · CVE-2022-20368 · CVE-2022-20369 · CVE-2022-2047 · CVE-2022-2048 · CVE-2022-20567 · CVE-2022-2068 · CVE-2022-2097 · CVE-2022-21216 · CVE-2022-21233 · CVE-2022-2124 · CVE-2022-2125 · CVE-2022-2126 · CVE-2022-2129 · CVE-2022-21363 · CVE-2022-21385 · CVE-2022-21499 · CVE-2022-2153 · CVE-2022-21540 · CVE-2022-21541 · CVE-2022-21549 · CVE-2022-21618 · CVE-2022-21619 · CVE-2022-21624 · CVE-2022-21626 · CVE-2022-21628 · CVE-2022-21702 · CVE-2022-2175 · CVE-2022-2182 · CVE-2022-2183 · CVE-2022-2206 · CVE-2022-2207 · CVE-2022-2208 · CVE-2022-2210 · CVE-2022-2231 · CVE-2022-2256 · CVE-2022-2257 · CVE-2022-2264 · CVE-2022-2284 · CVE-2022-2285 · CVE-2022-2286 · CVE-2022-2287 · CVE-2022-22976 · CVE-2022-22978 · CVE-2022-2304 · CVE-2022-2318 · CVE-2022-23302 · CVE-2022-23305 · CVE-2022-23307 · CVE-2022-2343 · CVE-2022-2344 · CVE-2022-2345 · CVE-2022-23471 · CVE-2022-23521 · CVE-2022-23772 · CVE-2022-23773 · CVE-2022-24302 · CVE-2022-24329 · CVE-2022-24823 · CVE-2022-24903 · CVE-2022-2503 · CVE-2022-25147 · CVE-2022-25168 · CVE-2022-2519 · CVE-2022-2520 · CVE-2022-2521 · CVE-2022-2522 · CVE-2022-25647 · CVE-2022-2571 · CVE-2022-2580 · CVE-2022-2581 · CVE-2022-25857 · CVE-2022-2588 · CVE-2022-2598 · CVE-2022-26148 · CVE-2022-26365 · CVE-2022-26373 · CVE-2022-2639 · CVE-2022-26612 · CVE-2022-2663 · CVE-2022-27781 · CVE-2022-27782 · CVE-2022-27943 · CVE-2022-2795 · CVE-2022-28131 · CVE-2022-2816 · CVE-2022-2817 · CVE-2022-2819 · CVE-2022-28327 · CVE-2022-2845 · CVE-2022-2849 · CVE-2022-2862 · CVE-2022-2867 · CVE-2022-2868 · CVE-2022-2869 · CVE-2022-28693 · CVE-2022-2874 · CVE-2022-28748 · CVE-2022-2880 · CVE-2022-2889 · CVE-2022-29162 · CVE-2022-29187 · CVE-2022-2923 · CVE-2022-2946 · CVE-2022-29526 · CVE-2022-29583 · CVE-2022-2964 · CVE-2022-2977 · CVE-2022-2980 · CVE-2022-2982 · CVE-2022-29900 · CVE-2022-29901 · CVE-2022-2991 · CVE-2022-3016 · CVE-2022-3028 · CVE-2022-3037 · CVE-2022-30580 · CVE-2022-30630 · CVE-2022-30631 · CVE-2022-30632 · CVE-2022-30633 · CVE-2022-3099 · CVE-2022-31030 · CVE-2022-31159 · CVE-2022-3134 · CVE-2022-3153 · CVE-2022-3169 · CVE-2022-31690 · CVE-2022-32148 · CVE-2022-32149 · CVE-2022-32206 · CVE-2022-32208 · CVE-2022-32221 · CVE-2022-3234 · CVE-2022-3235 · CVE-2022-3239 · CVE-2022-3278 · CVE-2022-3296 · CVE-2022-3297 · CVE-2022-33196 · CVE-2022-3324 · CVE-2022-3352 · CVE-2022-33740 · CVE-2022-33741 · CVE-2022-33742 · CVE-2022-33972 · CVE-2022-33981 · CVE-2022-34169 · CVE-2022-3424 · CVE-2022-34266 · CVE-2022-34526 · CVE-2022-34903 · CVE-2022-3491 · CVE-2022-3515 · CVE-2022-3520 · CVE-2022-3521 · CVE-2022-3524 · CVE-2022-35252 · CVE-2022-3542 · CVE-2022-3545 · CVE-2022-3564 · CVE-2022-3565 · CVE-2022-3566 · CVE-2022-3567 · CVE-2022-35737 · CVE-2022-3586 · CVE-2022-3591 · CVE-2022-3594 · CVE-2022-3597 · CVE-2022-3599 · CVE-2022-36109 · CVE-2022-3621 · CVE-2022-3626 · CVE-2022-3627 · CVE-2022-3628 · CVE-2022-36280 · CVE-2022-3629 · CVE-2022-3635 · CVE-2022-3643 · CVE-2022-36437 · CVE-2022-3646 · CVE-2022-3649 · CVE-2022-36760 · CVE-2022-36879 · CVE-2022-36946 · CVE-2022-3705 · CVE-2022-37434 · CVE-2022-37436 · CVE-2022-37865 · CVE-2022-37866 · CVE-2022-38090 · CVE-2022-38096 · CVE-2022-38126 · CVE-2022-38127 · CVE-2022-38177 · CVE-2022-38178 · CVE-2022-3821 · CVE-2022-38533 · CVE-2022-38749 · CVE-2022-38750 · CVE-2022-38751 · CVE-2022-38752 · CVE-2022-39028 · CVE-2022-3903 · CVE-2022-39188 · CVE-2022-39399 · CVE-2022-3970 · CVE-2022-40149 · CVE-2022-40150 · CVE-2022-40151 · CVE-2022-40152 · CVE-2022-40153 · CVE-2022-40303 · CVE-2022-40304 · CVE-2022-40307 · CVE-2022-40674 · CVE-2022-40768 · CVE-2022-40899 · CVE-2022-4095 · CVE-2022-41218 · CVE-2022-4129 · CVE-2022-4141 · CVE-2022-41717 · CVE-2022-41721 · CVE-2022-41848 · CVE-2022-41850 · CVE-2022-41854 · CVE-2022-41858 · CVE-2022-41881 · CVE-2022-41903 · CVE-2022-41915 · CVE-2022-41966 · CVE-2022-41974 · CVE-2022-42003 · CVE-2022-42004 · CVE-2022-42010 · CVE-2022-42011 · CVE-2022-42012 · CVE-2022-42328 · CVE-2022-42329 · CVE-2022-42703 · CVE-2022-42889 · CVE-2022-42895 · CVE-2022-42896 · CVE-2022-42898 · CVE-2022-4292 · CVE-2022-4293 · CVE-2022-42969 · CVE-2022-4304 · CVE-2022-43552 · CVE-2022-43680 · CVE-2022-43750 · CVE-2022-4378 · CVE-2022-43945 · CVE-2022-43995 · CVE-2022-4415 · CVE-2022-4450 · CVE-2022-44638 · CVE-2022-45061 · CVE-2022-45688 · CVE-2022-45884 · CVE-2022-45885 · CVE-2022-45886 · CVE-2022-45887 · CVE-2022-45919 · CVE-2022-45934 · CVE-2022-45939 · CVE-2022-4662 · CVE-2022-46751 · CVE-2022-46908 · CVE-2022-47629 · CVE-2022-47929 · CVE-2022-48281 · CVE-2022-48337 · CVE-2022-48339 · CVE-2023-0045 · CVE-2023-0049 · CVE-2023-0051 · CVE-2023-0054 · CVE-2023-0215 · CVE-2023-0286 · CVE-2023-0288 · CVE-2023-0433 · CVE-2023-0464 · CVE-2023-0465 · CVE-2023-0466 · CVE-2023-0512 · CVE-2023-0590 · CVE-2023-0597 · CVE-2023-0833 · CVE-2023-1076 · CVE-2023-1095 · CVE-2023-1118 · CVE-2023-1127 · CVE-2023-1170 · CVE-2023-1175 · CVE-2023-1370 · CVE-2023-1380 · CVE-2023-1390 · CVE-2023-1436 · CVE-2023-1513 · CVE-2023-1611 · CVE-2023-1670 · CVE-2023-1855 · CVE-2023-1989 · CVE-2023-1990 · CVE-2023-1998 · CVE-2023-20862 · CVE-2023-2124 · CVE-2023-2162 · CVE-2023-2176 · CVE-2023-21830 · CVE-2023-21835 · CVE-2023-21843 · CVE-2023-21930 · CVE-2023-21937 · CVE-2023-21938 · CVE-2023-21939 · CVE-2023-2194 · CVE-2023-21954 · CVE-2023-21967 · CVE-2023-21968 · CVE-2023-22490 · CVE-2023-2253 · CVE-2023-22809 · CVE-2023-23454 · CVE-2023-23455 · CVE-2023-23559 · CVE-2023-23916 · CVE-2023-23946 · CVE-2023-24329 · CVE-2023-24532 · CVE-2023-24534 · CVE-2023-2483 · CVE-2023-24998 · CVE-2023-2513 · CVE-2023-25193 · CVE-2023-25652 · CVE-2023-25690 · CVE-2023-25809 · CVE-2023-25815 · CVE-2023-26048 · CVE-2023-26049 · CVE-2023-2650 · CVE-2023-26545 · CVE-2023-26604 · CVE-2023-27533 · CVE-2023-27534 · CVE-2023-27535 · CVE-2023-27536 · CVE-2023-27538 · CVE-2023-27561 · CVE-2023-2828 · CVE-2023-28320 · CVE-2023-28321 · CVE-2023-28322 · CVE-2023-28328 · CVE-2023-28464 · CVE-2023-28486 · CVE-2023-28487 · CVE-2023-28642 · CVE-2023-28772 · CVE-2023-28840 · CVE-2023-28841 · CVE-2023-28842 · CVE-2023-29007 · CVE-2023-29383 · CVE-2023-29402 · CVE-2023-29406 · CVE-2023-29409 · CVE-2023-2976 · CVE-2023-30630 · CVE-2023-30772 · CVE-2023-31084 · CVE-2023-3138 · CVE-2023-31436 · CVE-2023-31484 · CVE-2023-32269 · CVE-2023-32697 · CVE-2023-33264 · CVE-2023-34034 · CVE-2023-34035 · CVE-2023-34453 · CVE-2023-34454 · CVE-2023-34455 · CVE-2023-34462 · CVE-2023-35116 · CVE-2023-3635 · CVE-2023-36479 · CVE-2023-39533 · CVE-2023-40167 · CVE-2023-40217 · CVE-2023-41105 · CVE-2023-41900 · CVE-2023-43642 · CVE-2023-43804 · CVE-2023-44487 · CVE-2023-45803 · CVE-2024-21626

Source published
Apr 21, 2020, 1:45:15 PM (timezone not stated)
Source modified
Oct 8, 2026, 9:03:24 PM (timezone not stated)
Observed here
9 Nov 2026 20:08:43 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

nvd · CVE-2020-1967

Published

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-476

Original publisher date fields

published: 2020-04-21T14:15:11.287

lastModified: 2026-10-08T21:17:24.923

35 source CPE criteria · context only
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:application_server:12.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:enterprise_manager_for_storage_management:13.3.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:enterprise_manager_for_storage_management:13.4.0.0:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:jd_edwards_world_security:a9.4:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:mysql_connectors:*:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:mysql_enterprise_monitor:*:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.56:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:windows:*:*
  • cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:*
  • cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:*
  • cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
  • cpe:2.3:o:broadcom:fabric_operating_system:-:*:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
  • cpe:2.3:a:jdedwards:enterpriseone:*:*:*:*:*:*:*:*
  • cpe:2.3:a:tenable:log_correlation_engine:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published
21 Apr 2020 14:15:11 UTC
Source modified
8 Oct 2026 21:17:24 UTC
Observed here
24 Oct 2026 16:17:26 UTC
Source terms
NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Primary · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 · [email protected] · Primary · 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

osv · GHSA-jq65-29v4-4x35

Published

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL versions prior to 1.1.1d. Fixed in OpenSSL 1.1.1g (Affected 1.1.1d-1.1.1f).

Source published
25 Aug 2021 20:45:15 UTC
Source modified
10 Sep 2026 03:49:08 UTC
Observed here
24 Oct 2026 13:19:54 UTC
Source terms
GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Publisher rating · HIGH

osv · RUSTSEC-2020-0015

Published

Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack.

Source published
25 Apr 2020 12:00:00 UTC
Source modified
15 Jul 2024 22:00:19 UTC
Observed here
24 Oct 2026 13:19:54 UTC
Source terms
OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 10 Nov 15:49 UTC · 275 of 275 readable · 274 fully read · documentation 469/469 current