Information disclosure in Linux kernel - CVE-2013-3233
Published: April 22, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU42886
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-3233
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The llcp_sock_recvmsg function in net/nfc/llcp/sock.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable and a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.
How to mitigate CVE-2013-3233
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d26d6504f23e803824e8ebd14e52d4fc0a0b09cb
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/103750.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104480.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176
- http://www.openwall.com/lists/oss-security/2013/04/14/3
- http://www.ubuntu.com/usn/USN-1837-1
- https://github.com/torvalds/linux/commit/d26d6504f23e803824e8ebd14e52d4fc0a0b09cb
- https://lkml.org/lkml/2013/4/14/107