Vulnerability Details : CVE-2016-10147
crypto/mcryptd.c in the Linux kernel before 4.8.15 allows local users to cause a denial of service (NULL pointer dereference and system crash) by using an AF_ALG socket with an incompatible algorithm, as demonstrated by mcryptd(md5).
Vulnerability category: Memory CorruptionDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-10147
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-10147
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST |
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2016-10147
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A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-10147
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http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.15
Release Notes;Vendor Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1404200
1404200 – (CVE-2016-10147) CVE-2016-10147 kernel: Kernel crash by spawning mcrypt(alg) with incompatible algorithmIssue Tracking
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https://access.redhat.com/errata/RHSA-2017:1842
RHSA-2017:1842 - Security Advisory - Red Hat Customer Portal
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https://access.redhat.com/errata/RHSA-2017:2077
RHSA-2017:2077 - Security Advisory - Red Hat Customer Portal
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http://www.securityfocus.com/bid/95677
Linux Kernel 'crypto/mcryptd.c' Denial of Service Vulnerability
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48a992727d82cb7db076fa15d372178743b1f4cd
kernel/git/torvalds/linux.git - Linux kernel source treeIssue Tracking;Patch;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2017/01/17/13
oss-security - CVE request -- linux kernel: crash by spawning mcrypt(alg) with incompatible algorithmMailing List;Third Party Advisory
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http://marc.info/?l=linux-crypto-vger&m=148063683310477&w=2
'Crash in crypto mcryptd' - MARCThird Party Advisory
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https://github.com/torvalds/linux/commit/48a992727d82cb7db076fa15d372178743b1f4cd
crypto: mcryptd - Check mcryptd algorithm compatibility · torvalds/linux@48a9927 · GitHubIssue Tracking;Patch;Third Party Advisory
Products affected by CVE-2016-10147
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*