Vulnerability · Published Dec 22, 2023 · Assigned by mitre
CVE-2023-42465
High 7.0
In plain English
A high-severity security flaw in the sudo package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.5%top 54.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | sudo | 1.9.5p2-10.el9_3 | ALSA-2024:0811 |
| AlmaLinux:9 | sudo-python-plugin | 1.9.5p2-10.el9_3 | ALSA-2024:0811 |
| Debian:12 | sudo | no fix listed | DEBIAN-CVE-2023-42465 |
| Debian:13 | sudo | 1.9.15p2-2 | DEBIAN-CVE-2023-42465 |
| Debian:14 | sudo | 1.9.15p2-2 | DEBIAN-CVE-2023-42465 |
Affected products (as reported)
References
- https://www.sudo.ws/releases/changelog/
- https://www.openwall.com/lists/oss-security/2023/12/21/9
- https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f
- https://arxiv.org/abs/2309.02545
- https://github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15
- GLSA-202401-29 vendor-advisory
- FEDORA-2024-cdccda4f62 vendor-advisory
- https://security.netapp.com/advisory/ntap-20240208-0002/
- FEDORA-2024-6fa5af9ea8 vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27GM7FSCEVXM/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR76DGLEYEFZ/
- http://www.openwall.com/lists/oss-security/2025/09/23/2
- http://www.openwall.com/lists/oss-security/2025/09/24/6