7.1

CVE-2022-43995: sudo_project sudo Out-of-bounds Read

CVSS: 7.1v3.1HighModified
AliasesALPINE-CVE-2022-43995MGASA-2022-0426SUSE-SU-2022:3886-1
Published 02-11-2022Last modified 05-05-2025
Open JSON

Vulnerability summary

CVE-2022-43995 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in sudo_project sudo. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-11-2022
    PublishedVulnerability first disclosed.
  2. 05-05-2025
    Last modifiedVulnerability information updated.

Description

Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

+0.01 pp

From 0.28% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse33 products
  • sudo&distro=SUSE Enterprise Storage 6< 1.8.27-150000.4.30.1
  • sudo&distro=SUSE Enterprise Storage 7< 1.8.27-150000.4.30.1
  • sudo&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS< 1.8.27-150000.4.30.1
  • sudo&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 1.8.27-150000.4.30.1
  • sudo&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS< 1.8.27-150000.4.30.1
Opensuse4 products
  • sudo&distro=openSUSE Leap 15.3< 1.9.5p2-150300.3.13.1
  • sudo&distro=openSUSE Leap 15.4< 1.9.9-150400.4.6.1
  • sudo&distro=openSUSE Leap Micro 5.2< 1.9.5p2-150300.3.13.1
  • sudo&distro=openSUSE Tumbleweed< 1.9.12-3.1
Alpine1 product
  • sudo≥ 1.8.0, < 1.9.12-r1
Debian1 product
  • sudo< 1.9.12p1-1
Mageia1 product
  • sudo< 1.9.5p2-2.1.mga8
Sudo_project1 product
  • sudo≥ 1.8.0, < 1.9.12 | 1.9.12

6 vendors · 41 products

References

23 links
Show all 23 references