Race condition in Linux kernel

1) Race condition

EUVDB-ID: #VU43090

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2013-0871

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 3.0 - 3.7.3

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:3.0:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.6:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:3.0.9:*:*:*:*:*:*:*

External links

https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9899d11f654474d2d54ea52ceaa2a1f4db3abd68
https://lists.opensuse.org/opensuse-security-announce/2013-02/msg00022.html
https://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html
https://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
https://rhn.redhat.com/errata/RHSA-2013-0567.html
https://rhn.redhat.com/errata/RHSA-2013-0661.html
https://rhn.redhat.com/errata/RHSA-2013-0662.html
https://rhn.redhat.com/errata/RHSA-2013-0695.html
https://www.debian.org/security/2013/dsa-2632
https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.5
https://www.openwall.com/lists/oss-security/2013/02/15/16
https://www.ubuntu.com/usn/USN-1736-1
https://www.ubuntu.com/usn/USN-1737-1
https://www.ubuntu.com/usn/USN-1738-1
https://www.ubuntu.com/usn/USN-1739-1
https://www.ubuntu.com/usn/USN-1740-1
https://www.ubuntu.com/usn/USN-1741-1
https://www.ubuntu.com/usn/USN-1742-1
https://www.ubuntu.com/usn/USN-1743-1
https://www.ubuntu.com/usn/USN-1744-1
https://www.ubuntu.com/usn/USN-1745-1
https://bugzilla.redhat.com/show_bug.cgi?id=911937
https://github.com/torvalds/linux/commit/9899d11f654474d2d54ea52ceaa2a1f4db3abd68

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.