NULL Pointer Dereference Affecting libgnutlsxx28 package, versions <3.6.7-150000.6.45.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.17% (55th percentile)

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  • Snyk IDSNYK-SLES151-LIBGNUTLSXX28-2986867
  • published18 Aug 2022
  • disclosed17 Aug 2022

Introduced: 17 Aug 2022

CVE-2021-4209  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 libgnutlsxx28 to version 3.6.7-150000.6.45.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libgnutlsxx28 package and not the libgnutlsxx28 package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.

CVSS Scores

version 3.1