Out-of-bounds Read in Sudo Project
CVE-2022-43995
Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Sudo Project — versions 1.9.12
Weakness classification (CWE)
References
- www.sudo.ws/security/advisories/ (Vendor Advisory)
- github.com/sudo-project/sudo/commit/bd209b9f16fcd1270c13db27ae3329c677d48050 (Patch, Third Party Advisory)
- news.ycombinator.com/item (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/202211-08 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-43995?
- CVE-2022-43995 is a high-severity vulnerability in Sudo Project, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2022-11-02.
- How severe is CVE-2022-43995?
- High severity. CVSS v3 base score is 7.1 out of 10.