Vulnerability Details : CVE-2016-4581
fs/pnode.c in the Linux kernel before 4.5.4 does not properly traverse a mount propagation tree in a certain case involving a slave mount, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted series of mount system calls.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2016-4581
- 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:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-4581
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-4581
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
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 |
References for CVE-2016-4581
-
http://www.ubuntu.com/usn/USN-3005-1
USN-3005-1: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.ubuntu.com/usn/USN-2989-1
USN-2989-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4
-
http://rhn.redhat.com/errata/RHSA-2016-2574.html
RHSA-2016:2574 - Security Advisory - Red Hat Customer Portal
-
https://github.com/torvalds/linux/commit/5ec0811d30378ae104f250bfc9b3640242d81e3f
propogate_mnt: Handle the first propogated copy being a slave · torvalds/linux@5ec0811 · GitHubVendor Advisory
-
http://www.securityfocus.com/bid/90607
Linux kernel 'pnode.c' Denial of Service Vulnerability
-
http://www.ubuntu.com/usn/USN-3001-1
USN-3001-1: Linux kernel (Vivid HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
Oracle VM Server for x86 Bulletin - October 2016
-
http://www.ubuntu.com/usn/USN-2998-1
USN-2998-1: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/05/11/2
oss-security - CVE request: Mishandling the first propagated copy being a slave
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http://www.ubuntu.com/usn/USN-3000-1
USN-3000-1: Linux kernel (Utopic HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.ubuntu.com/usn/USN-3007-1
USN-3007-1: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html
[security-announce] openSUSE-SU-2016:1641-1: important: Security update
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http://www.ubuntu.com/usn/USN-3002-1
USN-3002-1: Linux kernel (Wily HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://www.ubuntu.com/usn/USN-3003-1
USN-3003-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5ec0811d30378ae104f250bfc9b3640242d81e3f
kernel/git/torvalds/linux.git - Linux kernel source tree
-
http://www.ubuntu.com/usn/USN-3004-1
USN-3004-1: Linux kernel (Raspberry Pi 2) vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://rhn.redhat.com/errata/RHSA-2016-2584.html
RHSA-2016:2584 - Security Advisory - Red Hat Customer Portal
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http://www.ubuntu.com/usn/USN-3006-1
USN-3006-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1333712
1333712 – (CVE-2016-4581) CVE-2016-4581 kernel: Slave being first propagated copy causes oops in propagate_mntIssue Tracking;Third Party Advisory;VDB Entry
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http://www.debian.org/security/2016/dsa-3607
Debian -- Security Information -- DSA-3607-1 linux
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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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