ALT-PU-2020-2749-1
Closed vulnerabilities
Published: 2020-08-20
BDU:2022-00225
Уязвимость клиента TLS 1.3 библиотеки безопасности транспортного уровня GnuTLS, связанная с записью за границами буфера, позволяющая нарушителю вызвать отказ в обслуживании
Severity: HIGH (7.5)
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References:
Published: 2020-09-04
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2020-24659
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.
Severity: HIGH (7.5)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References:
- openSUSE-SU-2020:1724
- openSUSE-SU-2020:1724
- openSUSE-SU-2020:1743
- openSUSE-SU-2020:1743
- https://gitlab.com/gnutls/gnutls/-/issues/1071
- https://gitlab.com/gnutls/gnutls/-/issues/1071
- FEDORA-2020-0ab6656303
- FEDORA-2020-0ab6656303
- FEDORA-2020-de51ee7cc9
- FEDORA-2020-de51ee7cc9
- GLSA-202009-01
- GLSA-202009-01
- https://security.netapp.com/advisory/ntap-20200911-0006/
- https://security.netapp.com/advisory/ntap-20200911-0006/
- USN-4491-1
- USN-4491-1
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04
- https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04