OpenSUSE Linux update for Mozilla Firefox

Published: 2016-11-05

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2016-5287 CVE-2016-5288
CWE-ID	CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Mozilla Firefox Client/Desktop applications / Web browsers
Vendor	Mozilla

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Arbitrary code execution

EUVDB-ID: #VU1040

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-5287

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated user to execute arbitrary code on the target system.
The weakness is due to insufficient input validation. By tricking the victim to download a specially crafted content, attackers can trigger a use-after-free memory error in nsTArray_base::SwapArrayElements() and execute arbitrary code.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Mitigation

Update the affected packages.

Vulnerable software versions

Mozilla Firefox: 49.0 - 49.0a2

CPE2.3

External links

http://lists.opensuse.org/opensuse-security-announce/2016-11/msg00015.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

2) Information disclosure

EUVDB-ID: #VU1041

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-5288