vulnerability
Ubuntu: USN-4491-1 (CVE-2020-24659): GnuTLS vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Sep 4, 2020 | Sep 10, 2020 | Mar 22, 2023 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Sep 4, 2020
Added
Sep 10, 2020
Modified
Mar 22, 2023
Description
An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.
Solution
ubuntu-upgrade-libgnutls30
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