Kernel: net: information leak in recvmsg handler msg_name & msg_namelen logic
Published Jan 6, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.48%
Description
The packet_recvmsg function in net/packet/af_packet.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure has been initialized, 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.
- ≤ 3.12.3
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
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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 affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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:L/Au:N/C:C/I:N/A:N
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 2, 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 2, 2026 | 0.48% (0.00480) | 39.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.48% (0.00480) | 37.44th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00046) | 11.17th | 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 (23)
- 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.securityfocus.com/bid/64744 vdb-entryx_refsource_BID
- 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-2013-7270 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1039845 x_refsource_CONFIRMIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/90131 vdb-entryx_refsource_XF
- https://github.com/torvalds/linux/commit/f3d3342602f8bcbf37d7c46641cb9bca7618eb1c x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-7270
- https://www.cve.org/CVERecord?id=CVE-2013-7270
Change history (0)
No recorded changes yet.