| Name | CVE-2023-42465 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| sudo (PTS) | buster | 1.8.27-1+deb10u3 | vulnerable |
| buster (security) | 1.8.27-1+deb10u6 | vulnerable |
| bullseye (security), bullseye | 1.9.5p2-3+deb11u1 | vulnerable |
| bookworm | 1.9.13p3-1+deb12u1 | vulnerable |
| sid, trixie | 1.9.15p5-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| sudo | source | (unstable) | 1.9.15p2-2 | | | |
Notes
[bookworm] - sudo <no-dsa> (Minor issue)
[bullseye] - sudo <no-dsa> (Minor issue)
[buster] - sudo <no-dsa> (Minor issue)
https://www.openwall.com/lists/oss-security/2023/12/21/9
https://github.com/sudo-project/sudo/commit/7873f8334c8d31031f8cfa83bd97ac6029309e4f (SUDO_1_9_15p1)
it is more an hardening against hardware bug (rowhammer) than a security fix per se
part of the code in the fix commit are not built because debian use PAM: plugins/sudoers/auth/sudo_auth.[ch]
plugins/sudoers/lookup.c part was added in version 1.9.15
plugins/sudoers/match.c, part was added in 1.8.21