Source: sudo Version: 1.9.17p2-8 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for sudo. CVE-2026-96512[0]: | A flaw was found in sudo. When sudoers rules use NOTBEFORE or | NOTAFTER time-based access restrictions with timestamps that omit | the trailing 'Z' timezone indicator, the time evaluation relies on | the TZ environment variable inherited from the calling user. Because | sudo is a setuid-root program, an unprivileged local user can set TZ | to an extreme timezone offset to shift the authorization window by | up to approximately 25 hours, causing expired rules to be treated as | valid. This allows the user to execute commands outside the intended | time window. Authentication is not bypassed; only the time-based | authorization check is affected. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-96512 https://www.cve.org/CVERecord?id=CVE-2026-96512 [1] https://bugzilla.redhat.com/show_bug.cgi?id=2539327 [2] https://github.com/sudo-project/sudo/commit/1820a349687522f51023d1ae5925125f59679a8c Please adjust the affected versions in the BTS as needed. Regards, Salvatore
