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CVE-2026-96512 A flaw was found in sudo

Description

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
Red Hat Enterprise Linux 10 Versions non publiées
Red Hat Enterprise Linux 9 Versions non publiées
Red Hat Hardened Images 1.9 premières → < 1.9.17-16.p2.2.hum1 1.9.17-16.p2.2.hum1
Red Hat Enterprise Linux 7 Versions non publiées
Red Hat Enterprise Linux 8 Versions non publiées
Red Hat Update Infrastructure 5 1791978693 premières → < 1791978693 1791978693
Red Hat Enterprise Linux 9.6 Extended Update Support Versions non publiées
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions non publiées
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions non publiées
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Références

Chronologie

  1. Publiée
  2. Dernière modification
Les 1454 CVE de Red Hat Enterprise Linux 10 →
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