Off-by-one Error Affecting sudo-devel package, versions <1.8.22-4.18.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Attacked
EPSS
96.37% (100th percentile)

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  • Snyk IDSNYK-SLES150-SUDODEVEL-2682570
  • published14 Apr 2022
  • disclosed20 Apr 2021

Introduced: 20 Apr 2021

CVE-2021-3156  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 sudo-devel to version 1.8.22-4.18.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sudo-devel package and not the sudo-devel package as distributed by SLES. See How to fix? for SLES:15.0 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