kernel: sctp: sk_ack_backlog wrap-around problem
Published Jul 3, 2014
5.0
MEDIUMCVSS 2.0
EPSS 5.93%
Description
The sctp_association_free function in net/sctp/associola.c in the Linux kernel before 3.15.2 does not properly manage a certain backlog value, which allows remote attackers to cause a denial of service (socket outage) via a crafted SCTP packet.
Affected products
No data.
Configuration 1
- < 3.15.2
Configuration 2
- 11
- 11
- 10
- 11
- 11
Configuration 3
- 12.04
Configuration 4
- 7.0
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.29.2.el6
Fixed · RHSA-2014:1167
Red Hat Enterprise Linux 7
kernel-0:3.10.0-123.6.3.el7
Fixed · RHSA-2014:1023
Red Hat Enterprise MRG 2
kernel-rt-0:3.10.33-rt32.43.el6rt
Fixed · RHSA-2014:0913
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-431.29.2.el6 | Fixed | RHSA-2014:1167 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-123.6.3.el7 | Fixed | RHSA-2014:1023 |
| Red Hat Enterprise MRG 2 | kernel-rt-0:3.10.33-rt32.43.el6rt | Fixed | RHSA-2014:0913 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages 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:N/AC:L/Au:N/C:N/I:N/A:P
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 1, 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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.93% (0.05926) | 93.03th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.81% (0.05814) | 92.15th | v5 (v2026.06.15) |
| May 27, 2025 | 14.14% (0.14138) | 93.99th | v4 (v2025.03.14) |
| Mar 30, 2025 | 10.13% (0.10130) | 92.37th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.14% (0.05137) | 82.71th | v4 (v2025.03.14) |
| Mar 17, 2025 | 10.13% (0.10130) | 92.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.86% (0.04860) | 93.06th | v3 (v2023.03.01) |
| Feb 13, 2024 | 4.86% (0.04860) | 92.48th | v3 (v2023.03.01) |
| Dec 27, 2023 | 7.14% (0.07137) | 93.34th | v3 (v2023.03.01) |
| Nov 8, 2023 | 7.47% (0.07469) | 93.40th | v3 (v2023.03.01) |
| Mar 7, 2023 | 7.23% (0.07226) | 92.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.78% (0.03779) | 85.48th | 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 (21)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d3217b15a19a4779c39b212358a5c71d725822ee x_refsource_CONFIRM
- http://linux.oracle.com/errata/ELSA-2014-3068.html x_refsource_CONFIRMThird Party Advisory
- http://linux.oracle.com/errata/ELSA-2014-3069.html x_refsource_CONFIRMThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00006.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00007.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://secunia.com/advisories/59777 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/59790 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/60564 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/60596 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.debian.org/security/2014/dsa-2992 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2 x_refsource_CONFIRMRelease NotesVendor Advisory
- http://www.openwall.com/lists/oss-security/2014/06/27/11 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/68224 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2334-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2335-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-4667 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1113967 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://github.com/torvalds/linux/commit/d3217b15a19a4779c39b212358a5c71d725822ee x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-4667
- https://www.cve.org/CVERecord?id=CVE-2014-4667
Change history (0)
No recorded changes yet.