{"id":"CVE-2020-6096","revision":"17c4f338e51648d38a9dadc9486d2375","records":[{"revision":"17c4f338e51648d38a9dadc9486d2375","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2020-6096","aliases":[],"title":"An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter r…","description":"An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data.","state":0,"publishedAt":"2020-04-01T00:00:00+00:00","modifiedAt":"2026-10-14T08:06:59.641+00:00","affected":[{"ecosystem":"Vendor product","name":"GNU glibc","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n/a\",\n                    \"product\": \"GNU glibc\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.30.9000\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1,"severity":"HIGH"}],"references":["https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/URXOIA2LDUKHQXK4BE55BQBRI6ZZG3Y6/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPYXTDOOB4PQGTYAMZAZNJIB3FF6YQXI/","https://security.gentoo.org/glsa/202101-20","https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E","https://sourceware.org/bugzilla/show_bug.cgi?id=25620","https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1019","https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2020-6096","license":"CVE Program Terms of Use","key":"cve-program:CVE-2020-6096","identifiers":["CVE-2020-6096"]},"retained":false,"historicalAffected":[]}],"coverage":[]}