PT-2015-7617 · Linux+3 · Linux Kernel+3

Martin Prpič

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Published

2015-10-06

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Updated

2017-03-24

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CVE-2015-7799

CVSS v2.0

4.9

Medium

VectorAV:L/AC:L/Au:N/C:N/I:N/A:C
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.2.3
Description The issue is related to the slhc init function in the Linux kernel, which does not validate certain slot numbers. This allows local users to cause a denial of service, resulting in a NULL pointer dereference and system crash, by making a crafted PPPIOCSMAXCID ioctl call.
Recommendations For Linux kernel versions prior to 4.2.3, update to version 4.2.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the PPPIOCSMAXCID ioctl call to minimize the risk of exploitation.

Exploit

Fix

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Related Identifiers

ALT-PU-2015-1834
ALT-PU-2016-1485
CVE-2015-7799
DLA-360-1
DSA-3426-1
MGASA-2016-0225
MGASA-2016-0232
MGASA-2016-0233
OPENSUSE-SU-2016_0301-1
OPENSUSE-SU-2016_0318-1
OPENSUSE-SU-2016_1008-1
SUSE-SU-2015:2194-1
SUSE-SU-2015:2292-1
SUSE-SU-2015:2339-1
SUSE-SU-2015:2350-1
SUSE-SU-2016:0585-1
SUSE-SU-2016:1203-1
SUSE-SU-2016:2074-1
USN-2841-1
USN-2841-2
USN-2842-1
USN-2842-2
USN-2843-1
USN-2843-2
USN-2843-3
USN-2844-1
USN-2886-1
USN-2886-2

Affected Products

Alt Linux
Linux Kernel
Suse
Ubuntu