Privilege escalation in Linux Kernel

Published: 2017-08-10 15:18:55 | Updated: 2017-08-16 16:08:42
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2017-1000112
CVSSv3 8.2 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CWE ID CWE-119
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software Linux kernel
Vulnerable software versions Linux kernel 4.12.5
Linux kernel 4.12.4
Linux kernel 4.12.3
Linux kernel 4.12.2
Linux kernel 4.12.1
Vendor URL Linux Foundation

Security Advisory

1) Privilege escalation

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to race condition in the UDP Fragmentation Offload (UFO) code. A local attacker can send specially crafted UFO packets, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Remediation

Update to version 4.12.6-1.

External links

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=85f1bd9a7b5a79d5baa8bf44af19658f7bf77bfa

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