Input validation error in Linux kernel - CVE-2013-7265
Published: January 6, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU42182
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-2013-7265
CWE-ID: CWE-20
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 pn_recvmsg function in net/phonet/datagram.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.
How to mitigate CVE-2013-7265
Install update from vendor's website.
Sources
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bceaa90240b6019ed73b49965eac7d167610be69
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html
- http://rhn.redhat.com/errata/RHSA-2014-0159.html
- http://seclists.org/oss-sec/2014/q1/29
- http://secunia.com/advisories/55882
- http://secunia.com/advisories/56036
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.4
- http://www.openwall.com/lists/oss-security/2013/11/28/13
- http://www.ubuntu.com/usn/USN-2107-1
- http://www.ubuntu.com/usn/USN-2108-1
- http://www.ubuntu.com/usn/USN-2109-1
- http://www.ubuntu.com/usn/USN-2110-1
- http://www.ubuntu.com/usn/USN-2113-1
- http://www.ubuntu.com/usn/USN-2117-1
- http://www.ubuntu.com/usn/USN-2135-1
- http://www.ubuntu.com/usn/USN-2136-1
- http://www.ubuntu.com/usn/USN-2138-1
- http://www.ubuntu.com/usn/USN-2139-1
- http://www.ubuntu.com/usn/USN-2141-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1035875
- https://github.com/torvalds/linux/commit/bceaa90240b6019ed73b49965eac7d167610be69