CVE-2016-4581

Severity

49%

Complexity

39%

Confidentiality

115%

CWE-476: NULL Pointer Dereference

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.

CWE-476: NULL Pointer Dereference

CVSS 3.0 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.9. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C).

Overview

Type

Linux

First reported 8 years ago

2016-05-23 10:59:00

Last updated 5 years ago

2019-12-27 16:08:00

Affected Software

Canonical Ubuntu Linux 12.04 LTS

12.04

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 15.10

15.10

Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)

16.04

Linux Kernel

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5ec0811d30378ae104f250bfc9b3640242d81e3f

openSUSE-SU-2016:1641

RHSA-2016:2574

RHSA-2016:2584

DSA-3607

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4

[oss-security] 20160511 CVE request: Mishandling the first propagated copy being a slave

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

Third Party Advisory

http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

90607

USN-2989-1

Third Party Advisory

USN-2998-1

Third Party Advisory

USN-3000-1

Third Party Advisory

USN-3001-1

Third Party Advisory

USN-3002-1

Third Party Advisory

USN-3003-1

Third Party Advisory

USN-3004-1

Third Party Advisory

USN-3005-1

Third Party Advisory

USN-3006-1

Third Party Advisory

USN-3007-1

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1333712

Issue Tracking, Third Party Advisory, VDB Entry

https://github.com/torvalds/linux/commit/5ec0811d30378ae104f250bfc9b3640242d81e3f

Vendor Advisory

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