HOMEVULNERABILITIESCVE-2023-42465
HIGH

CVE-2023-42465

NVD-CWE-noinfoPublished: December 22, 2023· Updated: Jun 17, 2026

7.0
CVSS v3.1

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.

NVD Source

Technical Analysis

CVE-2023-42465 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.0.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

sudo_project1 product(s)
sudo
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f
PATCHhttps://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f
ADVISORYhttps://arxiv.org/abs/2309.02545
ADVISORYhttps://arxiv.org/abs/2309.02545

All References (22)

→
https://arxiv.org/abs/2309.02545Technical Description · Third Party Advisory
→
https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4fPatch
→
https://github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15Release Notes
→
https://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/202401-29
→
https://security.netapp.com/advisory/ntap-20240208-0002/
→
https://www.openwall.com/lists/oss-security/2023/12/21/9Exploit · Mailing 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/2309.02545Technical Description · Third Party Advisory
→
https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4fPatch
→
https://github.com/sudo-project/sudo/releases/tag/SUDO_1_9_15Release Notes
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R4Q23NHCKCLFIHSNY6KJ27GM7FSCEVXM/

Quick Facts

CVE IDCVE-2023-42465
CVSS Score7.0 / 10
SeverityHIGH
WeaknessNVD-CWE-noinfo
CISA KEVNo
Affected1 vendor(s)
PublishedDec 22, 2023

Related CVEs (NVD-CWE-noinfo)

CVE-2022-21389
10.0
CVE-2022-21390
10.0
CVE-2021-41873
10.0
CVE-2022-21275
10.0
CVE-2021-35652
10.0
CVE-2022-32845
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-42465 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2023-42465·NVD