CVE-2022-43995
Published: 2 November 2022
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.
Notes
Author | Note |
---|---|
mdeslaur | sudo packages in Ubuntu are compiled with PAM support, so the vulnerable code isn't part of the binaries. |
Priority
Status
Package | Release | Status |
---|---|---|
sudo Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not compiled)
|
focal |
Not vulnerable
(code not compiled)
|
|
jammy |
Not vulnerable
(code not compiled)
|
|
kinetic |
Not vulnerable
(code not compiled)
|
|
trusty |
Not vulnerable
(code not compiled)
|
|
upstream |
Needs triage
|
|
xenial |
Not vulnerable
(code not compiled)
|
|
Patches: upstream: https://github.com/sudo-project/sudo/commit/bd209b9f16fcd1270c13db27ae3329c677d48050 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.1 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |