The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not properly handle DFS referrals, which allows remote CIFS servers to cause a denial of service (system crash) by placing a referral at the root of a share.
https://github.com/torvalds/linux/commit/70945643722ffeac779d2529a348f99567fa5c33
https://bugzilla.redhat.com/show_bug.cgi?id=738291
http://www.openwall.com/lists/oss-security/2011/09/14/12
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70945643722ffeac779d2529a348f99567fa5c33
Source: Mitre, NVD
Published: 2012-05-24
Updated: 2025-04-11
Base Score: 6.1
Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.00229