Vulnerability CVE-2013-0871
Published: 2013-02-17   Modified: 2013-02-18

Description:
Race condition in the ptrace functionality in the Linux kernel before 3.7.5 allows local users to gain privileges via a PTRACE_SETREGS ptrace system call in a crafted application, as demonstrated by ptrace_death.

See advisories in our WLB2 database:
Topic
Author
Date
High
Linux Kernel race condition with PTRACE_SETREGS (CVE-2013-0871)
Suleiman Souhlal...
16.02.2013

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.9/10
10/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Linux -> Linux kernel 

 References:
https://github.com/torvalds/linux/commit/9899d11f654474d2d54ea52ceaa2a1f4db3abd68
http://www.openwall.com/lists/oss-security/2013/02/15/16
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9899d11f654474d2d54ea52ceaa2a1f4db3abd68
https://bugzilla.redhat.com/show_bug.cgi?id=911937
http://www.ubuntu.com/usn/USN-1745-1
http://www.ubuntu.com/usn/USN-1744-1
http://www.ubuntu.com/usn/USN-1743-1
http://www.ubuntu.com/usn/USN-1742-1
http://www.ubuntu.com/usn/USN-1741-1
http://www.ubuntu.com/usn/USN-1740-1
http://www.ubuntu.com/usn/USN-1739-1
http://www.ubuntu.com/usn/USN-1738-1
http://www.ubuntu.com/usn/USN-1737-1
http://www.ubuntu.com/usn/USN-1736-1
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.5
http://www.debian.org/security/2013/dsa-2632
http://rhn.redhat.com/errata/RHSA-2013-0695.html
http://rhn.redhat.com/errata/RHSA-2013-0662.html
http://rhn.redhat.com/errata/RHSA-2013-0661.html
http://rhn.redhat.com/errata/RHSA-2013-0567.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00022.html
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