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Ubuntu: Security Advisory for gnutls28 (USN-4491-1)
Information
Severity
Severity
Medium
Family
Family
Ubuntu Local Security Checks
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:P/I:N/A:N
Solution Type
Solution Type
Vendor Patch
Created
Created
3 years ago
Modified
Modified
3 years ago
Summary
The remote host is missing an update for the 'gnutls28' package(s) announced via the USN-4491-1 advisory.
Insight
Insight
It was discovered that GnuTLS incorrectly handled certain alerts when being used with TLS 1.3 servers. A remote attacker could use this issue to cause GnuTLS to crash, resulting in a denial of service, or possibly execute arbitrary code.
Affected Software
Affected Software
'gnutls28' package(s) on Ubuntu 20.04 LTS.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
Please install the updated package(s).