kernel: net: potential information leak when ubuf backed skbs are skb_zerocopy()ied
Published Mar 24, 2014
2.9
LOWCVSS 2.0
EPSS 1.01%
Description
Use-after-free vulnerability in the nfqnl_zcopy function in net/netfilter/nfnetlink_queue_core.c in the Linux kernel through 3.13.6 allows attackers to obtain sensitive information from kernel memory by leveraging the absence of a certain orphaning operation. NOTE: the affected code was moved to the skb_zerocopy function in net/core/skbuff.c before the vulnerability was announced.
Affected products
No data.
Configuration 1
- ≥ 3.0 · ≤ 3.13.6
Configuration 2
- 14.04
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-123.4.2.el7
Fixed · RHSA-2014:0786
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-123.4.2.el7 | Fixed | RHSA-2014:0786 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-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, 6 and Red Hat Enterprise MRG 2.
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:M/Au:N/C:P/I:N/A:N
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.01% (0.01015) | 61.96th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.01% (0.01015) | 58.60th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.19% (0.00191) | 38.83th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00089) | 39.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00093) | 37.90th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
References (11)
- http://seclists.org/oss-sec/2014/q1/627 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://secunia.com/advisories/59599 third-party-advisoryx_refsource_SECUNIABroken Link
- http://www.openwall.com/lists/oss-security/2014/03/20/16 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/66348 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2240-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-2568 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1079012 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/91922 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://lkml.org/lkml/2014/3/20/421 mailing-listx_refsource_MLISTExploitThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-2568
- https://www.cve.org/CVERecord?id=CVE-2014-2568
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/oss-sec/2014/q1/627 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://secunia.com/advisories/59599 | third-party-advisoryx_refsource_SECUNIABroken Link | |
| http://www.openwall.com/lists/oss-security/2014/03/20/16 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.securityfocus.com/bid/66348 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-2240-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-2568 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1079012 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/91922 | vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry | |
| https://lkml.org/lkml/2014/3/20/421 | mailing-listx_refsource_MLISTExploitThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-2568 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-2568 |
Change history (0)
No recorded changes yet.