Ubuntu update for Linux kernel (regression)

Published: 2017-06-29

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2017-1000364 CVE-2016-4997
CWE-ID	CWE-119
Exploitation vector	Local
Public exploit	Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	Ubuntu Operating systems & Components / Operating system
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Memory corruption

EUVDB-ID: #VU7131

Risk: Medium

CVSSv3.1: 8.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2017-1000364

CWE-ID: CWE-119 - Memory corruption

Exploit availability: Yes

Description

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

The vulnerability exists due to memory management errors in implementation of various functions under multiple operating systems. A local or remote attacker can trigger the affected application to process specially crafted data, trigger memory corruption and execute arbitrary code on the target system. The vulnerability is dubbed by Qualys researchers as “Stack Clash”.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Update the affected packages.

Ubuntu 12.04 LTS:

linux-image-powerpc-smp 3.2.0.129.143

linux-image-3.2.0-129-generic 3.2.0-129.174

linux-image-powerpc 3.2.0.129.143

linux-image-3.2.0-129-omap 3.2.0-129.174

linux-image-3.2.0-129-powerpc-smp 3.2.0-129.174

linux-image-generic 3.2.0.129.143

linux-image-3.2.0-129-highbank 3.2.0-129.174

linux-image-3.2.0-129-powerpc64-smp 3.2.0-129.174

linux-image-highbank 3.2.0.129.143

linux-image-3.2.0-129-virtual 3.2.0-129.174

linux-image-3.2.0-129-generic-pae 3.2.0-129.174

linux-image-virtual 3.2.0.129.143

linux-image-powerpc64-smp 3.2.0.129.143

linux-image-generic-pae 3.2.0.129.143

linux-image-omap 3.2.0.129.143

Vulnerable software versions

Ubuntu: 12.04

External links

http://www.ubuntu.com/usn/usn-3338-2/

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. However, a fully functional exploit for this vulnerability is available.

2) Memory corruption

EUVDB-ID: #VU27

Risk: High