Privilege Escalation Affecting glibc package, versions [2.34,]


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Mature
EPSS
20.63% (97th percentile)

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  • Snyk IDSNYK-UNMANAGED-GLIBC-5929486
  • published4 Oct 2023
  • disclosed3 Oct 2023
  • creditSiddhesh Poyarekar, Salvatore Bonaccorso, Solar Designer

Introduced: 3 Oct 2023

CVE-2023-4911  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Privilege Escalation when the ld.so process is manipulated. An attacker can execute code with elevated privileges by using maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission.

Note: This is only exploitable if the system does not have the Secure Boot feature enabled.

CVSS Scores

version 3.1