#VU44034 Input validation error in Linux kernel - CVE-2011-3363
Published: May 25, 2012 / Updated: August 11, 2020
Vulnerability identifier: #VU44034
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2011-3363
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Remediation
Install update from vendor's website.
External links
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=70945643722ffeac779d2529a348f99567fa5c33
- http://www.openwall.com/lists/oss-security/2011/09/14/12
- https://bugzilla.redhat.com/show_bug.cgi?id=738291
- https://github.com/torvalds/linux/commit/70945643722ffeac779d2529a348f99567fa5c33