kernel: race condition with PTRACE_SETREGS
Published Feb 18, 2013
6.9
MEDIUMCVSS 2.0
EPSS 1.43%
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.
Affected products
No data.
- ≥ 3.5 · < 3.7.5
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-348.3.1.el5
Fixed · RHSA-2013:0621
Red Hat Enterprise Linux 5.6 EUS - Server Only
kernel-0:2.6.18-238.49.1.el5
Fixed · RHSA-2013:0695
Red Hat Enterprise Linux 6
kernel-0:2.6.32-358.0.1.el6
Fixed · RHSA-2013:0567
Red Hat Enterprise Linux 6.1 EUS - Server Only
kernel-0:2.6.32-131.38.1.el6
Fixed · RHSA-2013:0661
Red Hat Enterprise Linux 6.2 EUS - Server and Compute Node Only
kernel-0:2.6.32-220.34.1.el6
Fixed · RHSA-2013:0741
Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node Only
kernel-0:2.6.32-279.23.1.el6
Fixed · RHSA-2013:0662
Red Hat Enterprise MRG 2
kernel-rt-0:3.6.11-rt30.25.el6rt
Fixed · RHSA-2013:0622
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-348.3.1.el5 | Fixed | RHSA-2013:0621 |
| Red Hat Enterprise Linux 5.6 EUS - Server Only | kernel-0:2.6.18-238.49.1.el5 | Fixed | RHSA-2013:0695 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-358.0.1.el6 | Fixed | RHSA-2013:0567 |
| Red Hat Enterprise Linux 6.1 EUS - Server Only | kernel-0:2.6.32-131.38.1.el6 | Fixed | RHSA-2013:0661 |
| Red Hat Enterprise Linux 6.2 EUS - Server and Compute Node Only | kernel-0:2.6.32-220.34.1.el6 | Fixed | RHSA-2013:0741 |
| Red Hat Enterprise Linux 6.3 EUS - Server and Compute Node Only | kernel-0:2.6.32-279.23.1.el6 | Fixed | RHSA-2013:0662 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.6.11-rt30.25.el6rt | Fixed | RHSA-2013:0622 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2. Future updates may address this issue. Please note that while a public non-weaponized exploit exists, according to our testing the issue is very hard to hit.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.43% (0.01434) | 72.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.43% (0.01434) | 69.51th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00057) | 15.15th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (26)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9899d11f654474d2d54ea52ceaa2a1f4db3abd68 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00022.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2013-0567.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2013-0661.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2013-0662.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2013-0695.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2013/dsa-2632 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.5 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2013/02/15/16 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-1736-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1737-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1738-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1739-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1740-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1741-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1742-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1743-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1744-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-1745-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-0871 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=911937 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/9899d11f654474d2d54ea52ceaa2a1f4db3abd68 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-0871
- https://www.cve.org/CVERecord?id=CVE-2013-0871
Change history (0)
No recorded changes yet.