Heap-based Buffer Overflow Affecting sudo package, versions <0:1.8.29-6.el8_3.1


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
96.33% (100th percentile)

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  • Snyk IDSNYK-CENTOS8-SUDO-2089423
  • published26 Jul 2021
  • disclosed26 Jan 2021

Introduced: 26 Jan 2021

CVE-2021-3156  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Centos:8 sudo to version 0:1.8.29-6.el8_3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sudo package and not the sudo package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

References

CVSS Scores

version 3.1