Vulnerability CVE-2010-4158


Published: 2010-12-30   Modified: 2012-02-13

Description:
The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
linux kernel 2.6.36.1 Local Information Disclosure Vulnerability
Dan Rosenberg
02.01.2011

Type:

CWE-200

(Information Exposure)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Linux -> Kernel 
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=57fe93b374a6b8711995c2d466c502af9f3a08bb
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052513.html
http://lists.grok.org.uk/pipermail/full-disclosure/2010-November/077321.html
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2
http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
http://www.redhat.com/support/errata/RHSA-2010-0958.html
http://www.redhat.com/support/errata/RHSA-2011-0007.html
http://www.redhat.com/support/errata/RHSA-2011-0017.html
http://www.redhat.com/support/errata/RHSA-2011-0162.html
http://www.securityfocus.com/archive/1/514705
http://www.securityfocus.com/archive/1/514845
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.securityfocus.com/bid/44758
http://www.spinics.net/lists/netdev/msg146361.html
http://www.vmware.com/security/advisories/VMSA-2011-0012.html
http://www.vupen.com/english/advisories/2010/3321
http://www.vupen.com/english/advisories/2011/0012
http://www.vupen.com/english/advisories/2011/0124
http://www.vupen.com/english/advisories/2011/0168
http://www.vupen.com/english/advisories/2011/0298
http://www.vupen.com/english/advisories/2011/0375
https://bugzilla.redhat.com/show_bug.cgi?id=651698

Copyright 2020, cxsecurity.com

 

Back to Top