PT-2017-14141 · Linux+5 · Linux Kernel+5
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.13.6
Description
The issue is related to a race condition in the Linux kernel, specifically in the
net/packet/af packet.c file, which can lead to a use-after-free error when handling packet fanout data structures. This is caused by the interaction between fanout add and packet do bind system calls. The problem allows local users to potentially gain privileges.Recommendations
For Linux kernel versions prior to 4.13.6, update to version 4.13.6 or later to resolve the issue.
Exploit
Fix
Use After Free
Race Condition
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Related Identifiers
Affected Products
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu