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Vulnerability record · CVE-2023-42465 · published 22 December 2023

CVE-2023-42465: Sudo project sudo vulnerability

Sudo Project · Sudo

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.

7.0 CVSS 3.1 High EPSS 0.58% · top 52.0%
7.0CVSS 3.1 base score
0.58%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://arxiv.org/abs/2309.02545 Technical DescriptionThird Party Advisory
https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f Patch
https://github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15 Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27G
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR7
https://security.gentoo.org/glsa/202401-29
https://security.netapp.com/advisory/ntap-20240208-0002/
https://www.openwall.com/lists/oss-security/2023/12/21/9 ExploitMailing List
https://www.sudo.ws/releases/changelog/ Release Notes
http://www.openwall.com/lists/oss-security/2025/09/23/2
http://www.openwall.com/lists/oss-security/2025/09/24/6
https://arxiv.org/abs/2309.02545 Technical DescriptionThird Party Advisory
https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f Patch
https://github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15 Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27G
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR7
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27GM7
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR76D
https://security.gentoo.org/glsa/202401-29
https://security.netapp.com/advisory/ntap-20240208-0002/
https://www.openwall.com/lists/oss-security/2023/12/21/9 ExploitMailing List
https://www.sudo.ws/releases/changelog/ Release Notes

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2025-32463Sudo chroot local privilege escalation via untrusted nsswitch.confSudo before 1.9.17p1 loads /etc/nsswitch.conf from a user-controlled directory when the --chroot option is used, allowing inclusion of functionality …KEVEPSS 56%analysed7.8CVE-2021-3156Sudo off-by-one heap overflow allows root privilege escalationSudo before 1.9.5p2 contains an off-by-one error leading to a heap-based buffer overflow. Triggering it via 'sudoedit -s' with a command-line argumen…KEVEPSS 100%analysed8.8CVE-2025-32462Sudo project sudo incorrect authorization vulnerabilitySudo before 1.9.17p1, when used with a sudoers file that specifies a host that is neither the current host nor ALL, allows listed users to execute co…EPSS 4.5%8.8CVE-2023-7090Sudo project sudo improper privilege management vulnerabilityA flaw was found in sudo in the handling of ipa_hostname, where ipa_hostname from /etc/sssd/sssd.conf was not propagated in sudo. Therefore, it leads…EPSS 0.69%8.8CVE-2019-14287Sudo policy bypass via crafted user ID in sudo -uSudo before 1.8.28 mishandles a crafted user ID passed to sudo -u, allowing an attacker who already holds a Runas ALL sudoer account to bypass policy…EPSS 64%analysed8.2CVE-2017-1000368Sudo project sudo improper input validation vulnerabilityTodd Miller's sudo version 1.8.20p1 and earlier is vulnerable to an input validation (embedded newlines) in the get_process_ttyname() function result…EPSS 0.57%7.8CVE-2026-35535Sudo project sudo vulnerabilityIn Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not …EPSS 0.18%7.8CVE-2023-22809Sudo sudoedit Argument Injection Enables Local Privilege EscalationSudo before 1.9.12p2 mishandles extra arguments supplied through the SUDO_EDITOR, VISUAL, and EDITOR environment variables in the sudoedit (-e) featu…EPSS 55%analysed

Source: NIST National Vulnerability Database (record CVE-2023-42465), CISA KEV, FIRST EPSS (scores of 2026-11-13). This page is refreshed as NVD updates the record.