MEDIUM
kernel: net: fib: fib6_add: potential NULL pointer dereference
Published Dec 9, 2013
4.7
MEDIUMCVSS 2.0
EPSS 0.43%
Description
The fib6_add function in net/ipv6/ip6_fib.c in the Linux kernel before 3.11.5 does not properly implement error-code encoding, which allows local users to cause a denial of service (NULL pointer dereference and system crash) by leveraging the CAP_NET_ADMIN capability for an IPv6 SIOCADDRT ioctl call.
Affected products
No data.
OR
- ≤ 3.11.4
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.0.12
- 3.0.13
- 3.0.14
- 3.0.15
- 3.0.16
- 3.0.17
- 3.0.18
- 3.0.19
- 3.0.20
- 3.0.21
- 3.0.22
- 3.0.23
- 3.0.24
- 3.0.25
- 3.0.26
- 3.0.27
- 3.0.28
- 3.0.29
- 3.0.30
- 3.0.31
- 3.0.32
- 3.0.33
- 3.0.34
- 3.0.35
- 3.0.36
- 3.0.37
- 3.0.38
- 3.0.39
- 3.0.40
- 3.0.41
- 3.0.42
- 3.0.43
- 3.0.44
- 3.0.45
- 3.0.46
- 3.0.47
- 3.0.48
- 3.0.49
- 3.0.50
- 3.0.51
- 3.0.52
- 3.0.53
- 3.0.54
- 3.0.55
- 3.0.56
- 3.0.57
- 3.0.58
- 3.0.59
- 3.0.60
- 3.0.61
- 3.0.62
- 3.0.63
- 3.0.64
- 3.0.65
- 3.0.66
- 3.0.67
- 3.0.68
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.1.10
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2.1
- 3.2.2
- 3.2.3
- 3.2.4
- 3.2.5
- 3.2.6
- 3.2.7
- 3.2.8
- 3.2.9
- 3.2.10
- 3.2.11
- 3.2.12
- 3.2.13
- 3.2.14
- 3.2.15
- 3.2.16
- 3.2.17
- 3.2.18
- 3.2.19
- 3.2.20
- 3.2.21
- 3.2.22
- 3.2.23
- 3.2.24
- 3.2.25
- 3.2.26
- 3.2.27
- 3.2.28
- 3.2.29
- 3.2.30
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3.1
- 3.3.2
- 3.3.3
- 3.3.4
- 3.3.5
- 3.3.6
- 3.3.7
- 3.3.8
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 3.4.5
- 3.4.6
- 3.4.7
- 3.4.8
- 3.4.9
- 3.4.10
- 3.4.11
- 3.4.12
- 3.4.13
- 3.4.14
- 3.4.15
- 3.4.16
- 3.4.17
- 3.4.18
- 3.4.19
- 3.4.20
- 3.4.21
- 3.4.22
- 3.4.23
- 3.4.24
- 3.4.25
- 3.4.26
- 3.4.27
- 3.4.28
- 3.4.29
- 3.4.30
- 3.4.31
- 3.4.32
- 3.5.1
- 3.5.2
- 3.5.3
- 3.5.4
- 3.5.5
- 3.5.6
- 3.5.7
- 3.6
- 3.6.1
- 3.6.2
- 3.6.3
- 3.6.4
- 3.6.5
- 3.6.6
- 3.6.7
- 3.6.8
- 3.6.9
- 3.6.10
- 3.6.11
- 3.7
- 3.7.1
- 3.7.2
- 3.7.3
- 3.7.4
- 3.7.5
- 3.7.6
- 3.7.7
- 3.7.8
- 3.7.9
- 3.7.10
- 3.8.0
- 3.8.1
- 3.8.2
- 3.8.3
- 3.8.4
- 3.8.5
- 3.8.6
- 3.8.7
- 3.8.8
- 3.8.9
- 3.8.10
- 3.8.11
- 3.8.12
- 3.8.13
- 3.9
- 3.9
- 3.9
- 3.9
- 3.9
- 3.9
- 3.9
- 3.9.0
- 3.9.1
- 3.9.2
- 3.9.3
- 3.9.4
- 3.9.5
- 3.9.6
- 3.9.7
- 3.9.8
- 3.9.9
- 3.9.10
- 3.9.11
- 3.10.1
- 3.10.2
- 3.10.3
- 3.10.4
- 3.10.5
- 3.10.6
- 3.10.7
- 3.10.8
- 3.10.9
- 3.10.10
- 3.10.11
- 3.10.12
- 3.10.13
- 3.10.14
- 3.10.15
- 3.10.16
- 3.10.17
- 3.10.18
- 3.11
- 3.11.1
- 3.11.2
- 3.11.3
No data.
Red Hat Enterprise MRG 2
kernel-rt-0:3.8.13-rt27.33.el6rt
Fixed · RHSA-2014:0100
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.8.13-rt27.33.el6rt | Fixed | RHSA-2014:0100 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6.
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.
4.7 MEDIUM NVD
AV:L/AC:M/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.43% 0.00435
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00435
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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.43% (0.00435) | 35.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.43% (0.00435) | 34.47th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00046) | 11.32th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.03% (0.01034) | 41.16th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.28% (0.01282) | 67.60th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
Weaknesses (2)
References (10)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2014-0100.html vendor-advisoryx_refsource_REDHAT
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2013/12/06/5 mailing-listx_refsource_MLISTPatch
- https://access.redhat.com/security/cve/CVE-2013-6431 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1039054 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2 x_refsource_CONFIRMExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2013-6431
- https://www.cve.org/CVERecord?id=CVE-2013-6431
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2 | x_refsource_CONFIRM | |
| http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html | vendor-advisoryx_refsource_SUSE | |
| http://rhn.redhat.com/errata/RHSA-2014-0100.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.11.5 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2013/12/06/5 | mailing-listx_refsource_MLISTPatch | |
| https://access.redhat.com/security/cve/CVE-2013-6431 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1039054 | x_refsource_CONFIRMIssue Tracking | |
| https://github.com/torvalds/linux/commit/ae7b4e1f213aa659aedf9c6ecad0bf5f0476e1e2 | x_refsource_CONFIRMExploitPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-6431 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-6431 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Dec 9, 2013
Updated Aug 6, 2024
Reserved Nov 4, 2013
Link CVE-2013-6431
CISA Vulnrichment
Updated n/a