Kernel: filter: prevent nla extensions to peek beyond the end of the message
Published May 11, 2014
4.9
MEDIUMCVSS 2.0
EPSS 0.60%
Description
The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.
Affected products
No data.
Configuration 1
- ≤ 3.14.3
Configuration 2
- 7.0
Configuration 3
- 10.04
- 12.04
- 13.10
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-431.23.3.el6
Fixed · RHSA-2014:0981
Red Hat Enterprise Linux 7
kernel-0:3.10.0-123.4.2.el7
Fixed · RHSA-2014:0786
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-0:2.6.32-431.23.3.el6 | Fixed | RHSA-2014:0981 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-123.4.2.el7 | Fixed | RHSA-2014:0786 |
| 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 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: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 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.60% (0.00602) | 46.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.60% (0.00602) | 43.92th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00094) | 24.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00180) | 56.51th | v3 (v2023.03.01) |
| Dec 22, 2023 | 0.08% (0.00080) | 33.67th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00056) | 21.52th | 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 (21)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3 x_refsource_CONFIRM
- http://linux.oracle.com/errata/ELSA-2014-3052.html x_refsource_CONFIRMThird Party Advisory
- http://secunia.com/advisories/58990 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/59311 third-party-advisoryx_refsource_SECUNIANot Applicable
- http://secunia.com/advisories/59597 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/60613 third-party-advisoryx_refsource_SECUNIANot Applicable
- http://www.debian.org/security/2014/dsa-2949 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.openwall.com/lists/oss-security/2014/05/09/6 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/67309 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2251-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2252-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2259-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2261-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2262-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2263-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-2264-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-3144 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1096775 Issue Tracking
- https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3 x_refsource_CONFIRMExploitPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-3144
- https://www.cve.org/CVERecord?id=CVE-2014-3144
Change history (0)
No recorded changes yet.