Out-of-bounds Write Affecting glibc package, versions <2.38-1ubuntu6


Severity

Recommended
0.0
high
0
10

Based on Ubuntu security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
20.63% (97th percentile)

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  • Snyk IDSNYK-UBUNTU2404-GLIBC-6696835
  • published29 Apr 2024
  • disclosed3 Oct 2023

Introduced: 3 Oct 2023

CVE-2023-4911  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Ubuntu:24.04 glibc to version 2.38-1ubuntu6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Ubuntu. See How to fix? for Ubuntu:24.04 relevant fixed versions and status.

A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.

References

CVSS Scores

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