MEDIUM
Kernel: net: information leak in recvmsg handler msg_name & msg_namelen logic
Published Jan 6, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.43%
Description
The mISDN_sock_recvmsg function in drivers/isdn/mISDN/socket.c in the Linux kernel before 3.12.4 does not ensure that a certain length value is consistent with the size of an associated data structure, which allows local users to obtain sensitive information from kernel memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call.
Affected products
No data.
OR
- ≤ 3.12.3
- 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
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- 3.0.14
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- 3.0.17
- 3.0.18
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- 3.0.25
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- 3.0.28
- 3.0.29
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- 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
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- 3.0.54
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- 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
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- 3.2.7
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- 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
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- 3.4.13
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- 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
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- 3.6.3
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- 3.7
- 3.7.1
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- 3.8.0
- 3.8.1
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- 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
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- 3.10.1
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- 3.11
- 3.11.1
- 3.11.2
- 3.11.3
- 3.11.4
- 3.11.5
- 3.11.6
- 3.11.7
- 3.11.8
- 3.11.9
- 3.11.10
- 3.12
- 3.12.1
- 3.12.2
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.11.2.el6
Fixed · RHSA-2014:0328
Red Hat Enterprise Linux 5
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-431.11.2.el6 | Fixed | RHSA-2014:0328 |
| Red Hat Enterprise Linux 5 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.
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.
4.9 MEDIUM NVD
AV:L/AC:L/Au:N/C:C/I:N/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.43% 0.00434
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00434
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 2, 2026 | 0.43% (0.00434) | 35.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.43% (0.00434) | 34.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00022) | 3.35th | 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) |
Weaknesses (1)
References (21)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f3d3342602f8bcbf37d7c46641cb9bca7618eb1c x_refsource_CONFIRM
- http://secunia.com/advisories/55882 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/56036 third-party-advisoryx_refsource_SECUNIA
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.4 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2013/12/31/7 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-2109-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2110-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2113-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2117-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2128-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2129-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2135-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2136-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2138-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2139-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2141-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-7266 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1039845 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/f3d3342602f8bcbf37d7c46641cb9bca7618eb1c x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-7266
- https://www.cve.org/CVERecord?id=CVE-2013-7266
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 6, 2014
Updated Aug 6, 2024
Reserved Jan 5, 2014
Link CVE-2013-7266
CISA Vulnrichment
Updated n/a