High severity · published Nov 2, 2022
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
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SU
Sudo · Sudo Project
1.8.0 before 1.9.12; 1.9.12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-43995
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-43995
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2139911
Patch
https://github.com/sudo-project/sudo/commit/bd209b9f16fcd1270c13db27ae3329c677d48050
Third Party Advisory
https://news.ycombinator.com/item?id=33465707
Third Party Advisory
https://security.gentoo.org/glsa/202211-08
Vendor Advisory
https://www.sudo.ws/security/advisories/
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