vulnerability
Arch Linux: Denial of service (CVE-2020-1967)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Apr 21, 2020 | Jul 11, 2025 | Nov 27, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Apr 21, 2020
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
A NULL pointer dereference has been found in OpenSSL versions 1.1.1d, 1.1.1e and 1.1.1f. 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.
Solution
arch-linux-upgrade-latest
References
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