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SUSE: CVE-2020-13777: SUSE Linux Security Advisory

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SUSE: CVE-2020-13777: SUSE Linux Security Advisory

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
06/04/2020
Created
07/10/2020
Added
06/10/2020
Modified
10/22/2021

Description

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.

Solution(s)

  • suse-upgrade-gnutls
  • suse-upgrade-gnutls-guile
  • suse-upgrade-libgnutls-dane-devel
  • suse-upgrade-libgnutls-dane0
  • suse-upgrade-libgnutls-devel
  • suse-upgrade-libgnutls-devel-32bit
  • suse-upgrade-libgnutls30
  • suse-upgrade-libgnutls30-32bit
  • suse-upgrade-libgnutls30-hmac
  • suse-upgrade-libgnutls30-hmac-32bit
  • suse-upgrade-libgnutlsxx-devel
  • suse-upgrade-libgnutlsxx28

References

  • SUSE-SU-2020:1584-1
  • USN-4384-1
  • CVE-2020-13777

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