CVE-2004-0949: Linux Kernel

Medium severity, CVSS 6.4. EPSS: 2.6% chance of exploitation in the next 30 days.

The smb_recv_trans2 function call in the samba filesystem (smbfs) in Linux kernel 2.4 and 2.6 does not properly handle the re-assembly of fragmented packets correctly, which could allow remote samba servers to (1) read arbitrary kernel information or (2) raise a counter value to an arbitrary number by sending the first part of the fragmented packet multiple times.

Affected products

• Linux Linux Kernel: version 2.4.0 only; version 2.4.1 only; version 2.4.2 only; version 2.4.3 only; version 2.4.4 only; version 2.4.5 only; …
• Red Hat Enterprise Linux: version 2.1 only; version 3.0 only
• Red Hat Enterprise Linux Desktop: version 3.0 only
• Red Hat Fedora Core: version core_2.0 only; version core_3.0 only
• Red Hat Linux Advanced Workstation: version 2.1 only
• Suse Suse Linux: version 1.0 only; version 8 only; version 8.1 only; version 8.2 only; version 9.0 only; version 9.1 only; …
• Trustix Secure Linux: version 1.5 only; version 2.0 only; version 2.1 only; version 2.2 only
• Ubuntu Ubuntu Linux: version 4.1 only

Published 2005-01-10. Last modified 2026-06-16.