MEDIUM
Kernel: net: leakage of uninitialized memory to user-space via recv syscalls
Published Jan 6, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.46%
Description
The Linux kernel before 3.12.4 updates certain length values before ensuring that associated data structures have been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call, related to net/ipv4/ping.c, net/ipv4/raw.c, net/ipv4/udp.c, net/ipv6/raw.c, and net/ipv6/udp.c.
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
- 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
- 3.10.19
- 3.10.20
- 3.10.21
- 3.10.22
- 3.10.23
- 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 5
kernel-0:2.6.18-371.6.1.el5
Fixed · RHSA-2014:0285
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.5.1.el6
Fixed · RHSA-2014:0159
Red Hat Enterprise MRG 2
kernel-rt-0:3.10.33-rt32.33.el6rt
Fixed · RHSA-2014:0439
Red Hat Enterprise Linux 7
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-371.6.1.el5 | Fixed | RHSA-2014:0285 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-431.5.1.el6 | Fixed | RHSA-2014:0159 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.10.33-rt32.33.el6rt | Fixed | RHSA-2014:0439 |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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.
0.46% 0.00461
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.00461
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 | 0.46% (0.00461) | 37.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.48% (0.00480) | 37.48th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00032) | 6.00th | 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 (29)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bceaa90240b6019ed73b49965eac7d167610be69 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2014-0159.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-0285.html vendor-advisoryx_refsource_REDHAT
- http://seclists.org/oss-sec/2014/q1/29 mailing-listx_refsource_MLIST
- 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/2013/11/28/13 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-2107-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2108-1 vendor-advisoryx_refsource_UBUNTU
- 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-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-2013-7263 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1035875 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/bceaa90240b6019ed73b49965eac7d167610be69 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2013-7263
- https://www.cve.org/CVERecord?id=CVE-2013-7263
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-2013-7263
CISA Vulnrichment
Updated n/a