Vulnerability CVE-2013-2239


Published: 2013-11-12

Description:
vzkernel before 042stab080.2 in the OpenVZ modification for the Linux kernel 2.6.32 does not initialize certain length variables, which allows local users to obtain sensitive information from kernel stack memory via (1) a crafted ploop driver ioctl call, related to the ploop_getdevice_ioc function in drivers/block/ploop/dev.c, or (2) a crafted quotactl system call, related to the compat_quotactl function in fs/quota/quota.c.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
OpenVZ kernel 2.6.32 (042stab080.1) Multiple memory leaks
Jonathan
04.07.2013

Type:

CWE-264

(Permissions, Privileges, and Access Controls)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.7/10
6.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
None
None
Affected software
Openvz -> Vzkernel 
Linux -> Linux kernel 

 References:
https://security-tracker.debian.org/tracker/CVE-2013-2239
https://bugs.gentoo.org/show_bug.cgi?id=475762
http://www.debian.org/security/2013/dsa-2766
http://wiki.openvz.org/Download/kernel/rhel6-testing/042stab080.2
http://openwall.com/lists/oss-security/2013/07/04/9

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