Ubuntu update for Linux kernel

1) Privilege escalation

EUVDB-ID: #VU7252

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-0605

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges.

The weakness exists due to a flaw in the kernel trace subsystem. A local attacker can run a specially crafted application and execute arbitrary code with root privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected packages

Ubuntu 16.10:

linux-image-4.8.0-54-generic 4.8.0-54.57

linux-image-powerpc-e500mc 4.8.0.54.66

linux-image-4.8.0-54-powerpc-smp 4.8.0-54.57

linux-image-4.8.0-54-powerpc-e500mc 4.8.0-54.57

linux-image-powerpc-smp 4.8.0.54.66

linux-image-generic 4.8.0.54.66

linux-image-4.8.0-54-generic-lpae 4.8.0-54.57

linux-image-lowlatency 4.8.0.54.66

linux-image-powerpc64-emb 4.8.0.54.66

linux-image-4.8.0-1038-raspi2 4.8.0-1038.41

linux-image-generic-lpae 4.8.0.54.66

linux-image-4.8.0-54-powerpc64-emb 4.8.0-54.57

linux-image-4.8.0-54-lowlatency 4.8.0-54.57

linux-image-raspi2 4.8.0.1038.42

Vulnerable software versions

Ubuntu: 16.10

CPE2.3

• cpe:2.3:o:canonical:ubuntu:16.10:*:*:*:*:*:*:*

External links

https://www.ubuntu.com/usn/usn-3313-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.