TI-2023-22630 Aliases CVE-2023-42465 GHSA-62rj-gv2c-8ghr

Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege…

LOW 32Published 2023-12-22 · Updated 2025-11-04

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Partial Red Hat: 10 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because application logic sometimes is based on not equaling an error value (instead of equaling a success value), and because the values do not resist flips of a single bit.

Why it matters now

EPSS 0.00545 45th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial Red Hat: 2 advisoriesRed Hat: 10 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:sudo_project:sudo::::::::	before 1.9.15	Vulnerable	Sudo project

cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* Versions before 1.9.15 Vulnerable ·Sudo project

Remediation

Red Hat 2 advisories

RHSA-2024:1383 Released 2024-03-19 · Red Hat rating Important
Red Hat OpenShift Data Foundation 4.15.0 security, enhancement, & bug fix update
- RHODF 4.15 for RHEL 9 odf4/cephcsi-rhel9, odf4/mcg-core-rhel9, odf4/mcg-operator-bundle +23
RHSA-2024:0811 Released 2024-02-14 · Red Hat rating Moderate
sudo security update
- Red Hat Enterprise Linux AppStream (v. 9) sudo-python-plugin-1.9.5p2-10.el9_3
- Red Hat Enterprise Linux AppStream EUS (v.9.0) sudo-python-plugin-1.9.5p2-7.el9_0.4
- Red Hat Enterprise Linux AppStream EUS (v.9.2) sudo-python-plugin-1.9.5p2-9.el9_2.2
- Red Hat Enterprise Linux BaseOS (v. 8) sudo-1.9.5p2-1.el8_9
- Red Hat Enterprise Linux BaseOS (v. 9) sudo-1.9.5p2-10.el9_3
- Red Hat Enterprise Linux BaseOS EUS (v.8.6) sudo-1.9.5p2-1.el8_6
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) sudo-1.9.5p2-1.el8_8
- Red Hat Enterprise Linux BaseOS EUS (v.9.0) sudo-1.9.5p2-7.el9_0.4
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) sudo-1.9.5p2-9.el9_2.2

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix planned: Out of support scope
RHODF 4.15 for RHEL 9	Fixed	RHSA-2024:1383
Red Hat Enterprise Linux AppStream (v. 9)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux AppStream EUS (v.9.0)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux AppStream EUS (v.9.2)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux BaseOS (v. 8)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux BaseOS (v. 9)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux BaseOS EUS (v.8.6)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux BaseOS EUS (v.8.8)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux BaseOS EUS (v.9.0)	Fixed	RHSA-2024:0811
Red Hat Enterprise Linux BaseOS EUS (v.9.2)	Fixed	RHSA-2024:0811

Timeline

2026-10-02 Threatist record created from CVE-2023-42465
2026-10-03 Alias added: GHSA-62rj-gv2c-8ghr

References

Exploit 1

https://www.openwall.com/lists/oss-security/2023/12/21/9

Patch 1

https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f

Advisory 4

Other 3

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