SB2023100343 - Privilege escalation in GNU Glibc

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Main Vulnerability Database SB2023100343

SB2023100343 - Privilege escalation in GNU Glibc

Published: October 3, 2023 Updated: March 7, 2025

Security Bulletin ID SB2023100343
CSH Severity
Low
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Buffer overflow (CVE-ID: CVE-2023-4911)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of GLIBC_TUNABLES environment variable. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References