CVE-2023-42465
published 2023-12-22CVE-2023-42465: Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or privilege escalation) because application logic sometimes is based on not…
PriorityP335high7CVSS 3.1
AVLACHPRLUINSUCHIHAH
EPSS
0.54%
41.9th percentile
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
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | sudo | < sudo 1.9.15p2-2 (forky) | sudo 1.9.15p2-2 (forky) |
| msrc | cbl2_sudo_1.9.15p5-1_on_cbl_mariner_2.0 | — | — |
| sudo_project | sudo | < 1.9.15 | 1.9.15 |
| sudo_project | sudo | >= 0 < 1.9.15p2-2 | 1.9.15p2-2 |
| sudo_project | sudo | >= 0 < 1.9.15p2-2 | 1.9.15p2-2 |
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.0HIGH
vendor_debian7.0LOW
vendor_msrc7.0HIGH
vendor_redhat7.0HIGH
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Microsoft
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
vendor_msrc·2023-12-12·CVSS 7.0
CVE-2023-42465 [HIGH] 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
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more info
Red Hat
sudo: Targeted Corruption of Register and Stack Variables
vendor_redhat·2023-09-05·CVSS 7.0
CVE-2023-42465 [HIGH] CWE-1319 sudo: Targeted Corruption of Register and Stack Variables
sudo: Targeted Corruption of Register and Stack Variables
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.
A flaw was found in the sudo package. This issue could allow a local authenticated attacker to cause a bit to flip, which enables fault injection and may authenticate as the root user.
Statement: "Mayhem" is a potent attack technique that focuses on the core components of computing systems, specifically the CPU internals and stack variables. This method signifies a noteworthy advancement in cyber threats, demonstrating a successful ability to tamper with a c
Debian
CVE-2023-42465: sudo - Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or ...
vendor_debian·2023·CVSS 7.0
CVE-2023-42465 [HIGH] CVE-2023-42465: sudo - Sudo before 1.9.15 might allow row hammer attacks (for authentication bypass or ...
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.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 1.9.15p2-2)
sid: resolved (fixed in 1.9.15p2-2)
trixie: resolved (fixed in 1.9.15p2-2)
OSV
CVE-2023-42465: Sudo before 1
osv·2023-12-22·CVSS 7.0
CVE-2023-42465 [HIGH] CVE-2023-42465: Sudo before 1
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.
GHSA
GHSA-62rj-gv2c-8ghr: Sudo before 1
ghsa_unreviewed·2023-12-22
CVE-2023-42465 [HIGH] GHSA-62rj-gv2c-8ghr: Sudo before 1
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.
No detection rules found.
No public exploits indexed.
https://arxiv.org/abs/2309.02545https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4fhttps://github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27GM7FSCEVXM/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR76DGLEYEFZ/https://security.gentoo.org/glsa/202401-29https://security.netapp.com/advisory/ntap-20240208-0002/https://www.openwall.com/lists/oss-security/2023/12/21/9https://www.sudo.ws/releases/changelog/http://www.openwall.com/lists/oss-security/2025/09/23/2http://www.openwall.com/lists/oss-security/2025/09/24/6https://arxiv.org/abs/2309.02545https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4fhttps://github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27GM7FSCEVXM/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6XMRUJCPII4MPWG43HTYR76DGLEYEFZ/https://lists.fedoraproject.org/archives/list/[email protected]/message/R4Q23NHCKCLFIHSNY6KJ27GM7FSCEVXM/https://lists.fedoraproject.org/archives/list/[email protected]/message/U6XMRUJCPII4MPWG43HTYR76DGLEYEFZ/https://security.gentoo.org/glsa/202401-29https://security.netapp.com/advisory/ntap-20240208-0002/https://www.openwall.com/lists/oss-security/2023/12/21/9https://www.sudo.ws/releases/changelog/
2023-12-22
Published