Off-by-one Error Affecting glibc-i18ndata package, versions <2.26-13.65.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-SLES152-GLIBCI18NDATA-2640697
  • published14 Apr 2022
  • disclosed14 Mar 2022

Introduced: 14 Mar 2022

CVE-2021-3999  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 glibc-i18ndata to version 2.26-13.65.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-i18ndata package and not the glibc-i18ndata package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.

CVSS Scores

version 3.1