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CVE-2025-38566: Linux

9.8

CVSS 3.1

0,6%

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.

  • Експлоатация: няма данни за експлоатация
  • Атаката може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix handling of server side tls alerts Scott Mayhew discovered a security exploit in NFS over TLS in tls_alert_recv() due to its assumption it can read data from the msg iterator's kvec.. kTLS implementation splits TLS non-data record payload between the control message buffer (which includes the type such as TLS aler or TLS cipher change) and the rest of the payload (say TLS alert's level/description) which goes into the msg payload buffer. This patch proposes to rework how control messages are setup and used by sock_recvmsg(). If no control message structure is setup, kTLS layer will read and process TLS data record types. As soon as it encounters a TLS control message, it would return an error. At that point, NFS can setup a kvec backed msg buffer and read in the control message such as a TLS alert. Msg iterator can advance the kvec pointer as a part of the copy process thus we need to revert the iterator before calling into the tls_alert_recv.

Засегнати продукти

  • Linux Linux: 5e052dda121e2870dd87181783da4a95d7d2927b преди b1df394621710b312f0393e3f240fdac0764f968; 5e052dda121e2870dd87181783da4a95d7d2927b преди 25bb3647d30a20486b5fe7cff2b0e503c16c9692; 5e052dda121e2870dd87181783da4a95d7d2927b преди 3b549da875414989f480b66835d514be80a0bd9c; 5e052dda121e2870dd87181783da4a95d7d2927b преди 6b33c31cc788073bfbed9297e1f4486ed73d87da; 5e052dda121e2870dd87181783da4a95d7d2927b преди bee47cb026e762841f3faece47b51f985e215edb
  • Linux Linux: 6.4; преди 6.4; 6.6.102 до 6.6.*; 6.12.42 до 6.12.*; 6.15.10 до 6.15.*; 6.16.1 до 6.16.*; от 6.17 нататък

История

  • 19 август 2025 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2025-38566: Linux | freedomonline.bg