CVE-2010-3079

moderate-risk
Published 2010-09-30

kernel/trace/ftrace.c in the Linux kernel before 2.6.35.5, when debugfs is enabled, does not properly handle interaction between mutex possession and llseek operations, which allows local users to cause a denial of service (NULL pointer dereference and outage of all function tracing files) via an lseek call on a file descriptor associated with the set_ftrace_filter file.

Do I need to act?

-
0.12% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (7)

Affected Vendors

Suse Linux Canonical

References (22)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
Broken Link http://secunia.com/advisories/42758
Broken Link http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35.5
Broken Link http://www.redhat.com/support/errata/RHSA-2010-0842.html
Third Party Advisory http://www.securityfocus.com/bid/43684
Third Party Advisory http://www.ubuntu.com/usn/USN-1041-1
Broken Link http://www.vupen.com/english/advisories/2011/0070
Broken Link http://www.vupen.com/english/advisories/2011/0298
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=631623
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
Broken Link http://secunia.com/advisories/42758
Broken Link http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35.5
Broken Link http://www.redhat.com/support/errata/RHSA-2010-0842.html
Third Party Advisory http://www.securityfocus.com/bid/43684
Third Party Advisory http://www.ubuntu.com/usn/USN-1041-1
Broken Link http://www.vupen.com/english/advisories/2011/0070
and 2 more references
33
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 14/34 · Moderate