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TI-2022-21622 Aliases CVE-2022-43995GHSA-3r97-xp9v-83jf

Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a…

Priority LOW 33CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00298 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*1.8.0 to before 1.9.12VulnerableSudo project
cpe:2.3:a:sudo_project:sudo:1.9.12:-:*:*:*:*:*:*1.9.12VulnerableSudo project
  • cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* Versions 1.8.0 to before 1.9.12 Vulnerable ·Sudo project
  • cpe:2.3:a:sudo_project:sudo:1.9.12:-:*:*:*:*:*:* Versions 1.9.12 Vulnerable ·Sudo project

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-43995
  2. 2026-10-03 Alias added: GHSA-3r97-xp9v-83jf

References

Patch 1

Advisory 4

  • TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
  • TI-2021-02242 Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer… KEVCVSS 3.1HIGH 7.8
  • TI-2019-10640 In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass… CVSS 3.1HIGH 8.8
  • TI-2023-08978 In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed… CVSS 3.1HIGH 7.8
  • TI-2019-13477 In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a… CVSS 3.1HIGH 7.8
  • TI-2025-23529 Incorrect authorization in Sudo CVSS 3.1HIGH 8.8
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences