Kernel: net: memory corruption with UDP_CORK and UFO
Published Nov 4, 2013
6.9
MEDIUMCVSS 2.0
EPSS 0.59%
Description
The Linux kernel before 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly initialize certain data structures, which allows local users to cause a denial of service (memory corruption and system crash) or possibly gain privileges via a crafted application that uses the UDP_CORK option in a setsockopt system call and sends both short and long packets, related to the ip_ufo_append_data function in net/ipv4/ip_output.c and the ip6_ufo_append_data function in net/ipv6/ip6_output.c.
Affected products
No data.
- ≤ 3.11.7
- 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
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- 3.0.19
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- 3.0.25
- 3.0.26
- 3.0.27
- 3.0.28
- 3.0.29
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- 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
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- 3.0.48
- 3.0.49
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- 3.0.59
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- 3.0.61
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- 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
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- 3.1.9
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- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
- 3.2
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- 3.2
- 3.2.1
- 3.2.1
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- 3.3
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- 3.3
- 3.3
- 3.3
- 3.3
- 3.3
- 3.3.1
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- 3.4
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- 3.4
- 3.4
- 3.4
- 3.4
- 3.4
- 3.4.1
- 3.4.1
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- 3.4.2
- 3.4.3
- 3.4.3
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- 3.5.1
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- 3.6
- 3.6.1
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- 3.7.1
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- 3.8.0
- 3.8.1
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- 3.8.7
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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
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- 3.9.4
- 3.9.5
- 3.9.6
- 3.9.7
- 3.9.8
- 3.9.9
- 3.9.10
- 3.9.11
- 3.10.0
- 3.10.1
- 3.10.2
- 3.10.3
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- 3.11
- 3.11.1
- 3.11.2
- 3.11.3
- 3.11.4
- 3.11.5
- 3.11.6
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.1.2.el6
Fixed · RHSA-2013:1801
Red Hat Enterprise Linux 6.4 Extended Update Support
kernel-0:2.6.32-358.37.1.el6
Fixed · RHSA-2014:0284
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 7
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-431.1.2.el6 | Fixed | RHSA-2013:1801 |
| Red Hat Enterprise Linux 6.4 Extended Update Support | kernel-0:2.6.32-358.37.1.el6 | Fixed | RHSA-2014:0284 |
| 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 7 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5.
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 3, 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.59% (0.00589) | 46.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.59% (0.00589) | 43.33th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00064) | 17.29th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.11% (0.00110) | 45.74th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.11% (0.00110) | 44.33th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00110) | 42.32th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (26)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e93b7d748be887cd7639b113ba7d7ef792a7efb9 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2013-1801.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-0100.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2014-0284.html vendor-advisoryx_refsource_REDHAT
- http://www.openwall.com/lists/oss-security/2013/10/25/5 mailing-listx_refsource_MLISTPatch
- http://www.securityfocus.com/bid/63359 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2040-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2042-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2043-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2044-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2046-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2049-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2050-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2066-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2067-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2069-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2073-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-4470 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1023477 x_refsource_CONFIRMPatchIssue Tracking
- https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b x_refsource_CONFIRMExploitPatch
- https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9 x_refsource_CONFIRMExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2013-4470
- https://www.cve.org/CVERecord?id=CVE-2013-4470
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2 x_refsource_CONFIRMPatch
Change history (0)
No recorded changes yet.