Out-of-bounds Write Affecting glibc package, versions <2.38-r5


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Mature
EPSS
20.63% (97th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-GLIBC-5928959
  • published4 Oct 2023
  • 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 Chainguard glibc to version 2.38-r5 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 Chainguard. See How to fix? for Chainguard 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

version 3.1