Kernel: net: IPv6: panic when UFO=On for an interface
Published Oct 10, 2013
6.1
MEDIUMCVSS 2.0
EPSS 2.58%
Description
net/ipv6/ip6_output.c in the Linux kernel through 3.11.4 does not properly determine the need for UDP Fragmentation Offload (UFO) processing of small packets after the UFO queueing of a large packet, which allows remote attackers to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via network traffic that triggers a large response packet.
Affected products
No data.
- ≤ 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
- 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
- 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
- 3.11
- 3.11.1
- 3.11.2
- 3.11.3
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.el6
Fixed · RHSA-2013:1645
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-rt14.25.el6rt
Fixed · RHSA-2013:1490
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.el6 | Fixed | RHSA-2013:1645 |
| 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-rt14.25.el6rt | Fixed | RHSA-2013:1490 |
| 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. This issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2 may address this issue.
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:A/AC:L/Au:N/C:N/I:N/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 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.58% (0.02578) | 84.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.58% (0.02578) | 83.13th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.74% (0.00740) | 71.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.95% (0.02946) | 91.21th | v3 (v2023.03.01) |
| May 23, 2023 | 2.95% (0.02946) | 89.36th | v3 (v2023.03.01) |
| Apr 6, 2023 | 4.12% (0.04115) | 90.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.09% (0.04089) | 90.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | v2 (v2022.01.01) |
| Feb 13, 2023 | 3.78% (0.03779) | 85.08th | v2 (v2022.01.01) |
| Feb 3, 2023 | 4.36% (0.04358) | 87.66th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.78% (0.03779) | 84.01th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.78% (0.03779) | 67.21th | v2 (v2022.01.01) |
References (20)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2811ebac2521ceac84f2bdae402455baa6a7fb47 x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2013-1490.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2013-1645.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/2013/09/29/1 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-2019-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2021-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2022-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2024-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2038-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2039-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2041-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2045-1 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
- https://access.redhat.com/security/cve/CVE-2013-4387 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1011927 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/2811ebac2521ceac84f2bdae402455baa6a7fb47 x_refsource_CONFIRMExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2013-4387
- https://www.cve.org/CVERecord?id=CVE-2013-4387
Change history (0)
No recorded changes yet.