Vulnerability CVE-2013-7263


Published: 2014-01-06

Description:
The Linux kernel before 3.12.4 updates certain length values before ensuring that associated data structures have 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, related to net/ipv4/ping.c, net/ipv4/raw.c, net/ipv4/udp.c, net/ipv6/raw.c, and net/ipv6/udp.c.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Linux Kernel 3.12.3 inet uninitialized memory to user in recv syscalls
mpb
09.01.2014

Type:

CWE-20

(Improper Input Validation)

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
None
Affected software
Linux -> Linux kernel 

 References:
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://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
http://rhn.redhat.com/errata/RHSA-2014-0159.html
http://rhn.redhat.com/errata/RHSA-2014-0285.html
http://seclists.org/oss-sec/2014/q1/29
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

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