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CVE-2013-0871

21
FAUCET Score

CVE-2013-0871 describes a race condition in the ptrace functionality of the Linux kernel before version 3.7.5, allowing local users to gain privileges. This vulnerability has a CVSS score of 6.9, indicating high severity due to its local attack vector, medium attack complexity, and complete impact on confidentiality, integrity, and availability. While no public exploit code is readily available (Metasploit, Nuclei, ExploitDB), it has received some community discussion and media coverage, including an article on Hacker News, though it is not listed on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.5, < 3.7.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.9MEDIUM

AV:L/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.43%
Probability of exploitation in next 30 days
EPSS Percentile
70.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0143 is in the 93rd percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-348.3.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5.6 EUS - Server OnlyFixed in: kernel-0:2.6.18-238.49.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-358.0.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.1 EUS - Server OnlyFixed in: kernel-0:2.6.32-131.38.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.2 EUS - Server and Compute Node OnlyFixed in: kernel-0:2.6.32-220.34.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node OnlyFixed in: kernel-0:2.6.32-279.23.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:3.6.11-rt30.25.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2013-0871Important

kernel: race condition with PTRACE_SETREGS

Feb 15, 2013

References

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