Vulnerability Details : CVE-2016-4951
The tipc_nl_publ_dump function in net/tipc/socket.c in the Linux kernel through 4.6 does not verify socket existence, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a dumpit operation.
Vulnerability category: Memory CorruptionDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-4951
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 8 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-4951
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
References for CVE-2016-4951
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http://www.ubuntu.com/usn/USN-3016-4
USN-3016-4: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.ubuntu.com/usn/USN-3020-1
USN-3020-1: Linux kernel (Vivid HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.ubuntu.com/usn/USN-3017-2
USN-3017-2: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.ubuntu.com/usn/USN-3016-1
USN-3016-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
Oracle VM Server for x86 Bulletin - October 2016Third Party Advisory
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http://www.openwall.com/lists/oss-security/2016/05/21/2
oss-security - Re: CVE request: -- Linux kernel: Null pointer dereference in tipc_nl_publ_dumpMailing List;Third Party Advisory
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=45e093ae2830cd1264677d47ff9a95a71f5d9f9c
kernel/git/torvalds/linux.git - Linux kernel source treeVendor Advisory
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http://lists.openwall.net/netdev/2016/05/14/28
netdev - BUG: net/tipc: NULL-ptr dereference in tipc_nl_publ_dumpMailing List;Patch;Third Party Advisory
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http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
[security-announce] openSUSE-SU-2016:1641-1: important: Security updateMailing List;Third Party Advisory
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http://www.ubuntu.com/usn/USN-3016-3
USN-3016-3: Linux kernel (Qualcomm Snapdragon) vulnerabilities | Ubuntu security noticesThird Party Advisory
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https://github.com/torvalds/linux/commit/45e093ae2830cd1264677d47ff9a95a71f5d9f9c
tipc: check nl sock before parsing nested attributes · torvalds/linux@45e093a · GitHubVendor Advisory
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http://www.ubuntu.com/usn/USN-3017-3
USN-3017-3: Linux kernel (Wily HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
Oracle Linux Bulletin - July 2016Third Party Advisory
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http://www.ubuntu.com/usn/USN-3017-1
USN-3017-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://www.ubuntu.com/usn/USN-3016-2
USN-3016-2: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu security noticesThird Party Advisory
Products affected by CVE-2016-4951
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*