Off-by-one Error Affecting glibc-langpack-et package, versions <2:2.28-164.0.5.ksplice1.el8_5.3


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE8-GLIBCLANGPACKET-2605216
  • published10 Apr 2022
  • disclosed24 Aug 2022

Introduced: 10 Apr 2022

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

How to fix?

Upgrade Oracle:8 glibc-langpack-et to version 2:2.28-164.0.5.ksplice1.el8_5.3 or higher.
This issue was patched in ELSA-2022-9234.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-et package and not the glibc-langpack-et package as distributed by Oracle. See How to fix? for Oracle:8 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