Crash causing Denial of Service attack
Exact source revision recorded 24 Oct 2026 13:19:54 UTC. It does not establish the source's current position. Latest evidence.
osv · RUSTSEC-2020-0015
PublishedServer 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
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CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H