Description
In Sudo through 1.9.17p2 before 3e474c2, a failure of a setuid, setgid, or setgroups call, during a privilege drop before running the mailer, is not a fatal error and can lead to privilege escalation.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Sudo project Sudo
Default version status: unaffected
0 to < 3e474c2f201484be83d994ae10a4e20e8c81bb69affected
References
- https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69 ↗
- https://www.qualys.com/2026/03/10/crack-armor.txt ↗
- https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042 ↗
- https://bugs.debian.org/1130593 ↗
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html ↗
- https://lists.debian.org/debian-lts-announce/2026/06/msg00003.html ↗
- https://access.redhat.com/security/cve/CVE-2026-35535 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2454714 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35535.json ↗
- https://access.redhat.com/errata/RHSA-2026:13896 ↗
- https://access.redhat.com/errata/RHSA-2026:13895 ↗
- https://access.redhat.com/errata/RHSA-2026:21695 ↗
- https://access.redhat.com/errata/RHSA-2026:21690 ↗
- https://access.redhat.com/errata/RHSA-2026:28887 ↗
- https://access.redhat.com/errata/RHSA-2026:23233 ↗
- https://access.redhat.com/errata/RHSA-2026:20087 ↗
- https://access.redhat.com/errata/RHSA-2026:34098 ↗
- https://access.redhat.com/errata/RHSA-2026:21656 ↗
- https://access.redhat.com/errata/RHSA-2026:20040 ↗
- https://access.redhat.com/errata/RHSA-2026:13888 ↗
- https://access.redhat.com/errata/RHSA-2026:10758 ↗
- https://access.redhat.com/errata/RHSA-2026:19067 ↗
- https://access.redhat.com/errata/RHSA-2026:13731 ↗
- https://access.redhat.com/errata/RHSA-2026:13891 ↗
- https://access.redhat.com/errata/RHSA-2026:14437 ↗
- https://access.redhat.com/errata/RHSA-2026:13889 ↗
- https://access.redhat.com/errata/RHSA-2026:12310 ↗
- https://access.redhat.com/errata/RHSA-2026:19220 ↗
- https://access.redhat.com/errata/RHSA-2026:11521 ↗
- https://access.redhat.com/errata/RHSA-2026:14228 ↗
- https://access.redhat.com/errata/RHSA-2026:13892 ↗
- https://access.redhat.com/errata/RHSA-2026:30088 ↗
- https://access.redhat.com/errata/RHSA-2026:21275 ↗
- https://access.redhat.com/errata/RHSA-2026:58981 ↗