Vulnerability Details : CVE-2014-2568
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.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2014-2568
Probability of exploitation activity in the next 30 days: 0.09%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 37 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2014-2568
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
2.9
|
LOW | AV:A/AC:M/Au:N/C:P/I:N/A:N |
5.5
|
2.9
|
NIST |
CWE ids for CVE-2014-2568
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Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-2568
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http://www.openwall.com/lists/oss-security/2014/03/20/16
oss-security - Re: CVE request -- kernel: net: potential information leak when ubuf backed skbs are skb_zerocopy()iedMailing List;Patch;Third Party Advisory
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http://seclists.org/oss-sec/2014/q1/627
oss-sec: CVE request -- kernel: net: potential information leak when ubuf backed skbs are skb_zerocopy()iedMailing List;Third Party Advisory
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https://lkml.org/lkml/2014/3/20/421
LKML: Zoltan Kiss: [PATCH v3] core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errorsExploit;Third Party Advisory
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http://www.ubuntu.com/usn/USN-2240-1
USN-2240-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1079012
1079012 – (CVE-2014-2568) CVE-2014-2568 kernel: net: potential information leak when ubuf backed skbs are skb_zerocopy()iedIssue Tracking;Third Party Advisory
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http://www.securityfocus.com/bid/66348
Linux Kernel CVE-2014-2568 Information Disclosure VulnerabilityThird Party Advisory;VDB Entry
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https://exchange.xforce.ibmcloud.com/vulnerabilities/91922
Linux Kernel skb_zerocopy() information disclosure CVE-2014-2568 Vulnerability ReportVDB Entry;Third Party Advisory
Products affected by CVE-2014-2568
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*