Aller au contenu
en Se connecter
5.1 Moyenne

CVE-2026-16599 GNU wget is vulnerable to denial of service in its FTP OPIE/S-KEY authentication functionality

Description

GNU wget is vulnerable to denial of service in its FTP OPIE/S-KEY authentication functionality. The server-supplied sequence number from the FTP challenge line is used as an iteration count for an MD5 key-derivation loop without any upper bound validation. A malicious FTP server or a network attacker positioned to intercept FTP traffic can send a crafted OPIE challenge with a sequence number near INT_MAX, causing wget to perform up to approximately 2.1 billion MD5 computations and suspend for some time. The --timeout option does not mitigate this because it applies only to network I/O, not CPU computation. This issue was fixed in commit e9697d98e7249b0f68a6be040a4f3dcc5bc101fa

Produits et versions touchés

Produit Versions touchées Corrigé en
wget 1.25 premières → 1.25.0 Pas de correctif indiqué

Références

Chronologie

  1. Publiée
  2. Dernière modification

Autres CVE de wget

Les 3 CVE de wget →
CVE-2024-10524 Applications that use Wget to access a remote resource using shorthand URLs and pass arbitrary user credentials in the… 6.5 Moyenne CVE-2024-38428 url.c in GNU Wget through 1.24.5 mishandles semicolons in the userinfo subcomponent of a URI, and thus there may be… 9.1 Critique
Suivre cette CVE