Riskcovery

CVE-2023-6246

Glibc: heap-based buffer overflow in __vsyslog_internal()

State
Published
Severity
8.4 High
Published
Jan 31, 2024
Updated
Oct 14, 2026
Reserved
Nov 21, 2023

Read the record on cve.org

Description

A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer.

Scores

CVSSScoreVectorSource
3.18.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hredhat

Weaknesses

Affected Products

ProductVersions
glibcn/a
  • 2.39Not affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 6Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 7Red Hat
          Red Hat Enterprise Linux 8Red Hat
            Red Hat Enterprise Linux 9Red Hat
              FedoraFedora

                References

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