Remote code execution in Pale Moon

1) Stack-based buffer overflow

EUVDB-ID: #VU69177

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-1591

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the fast_composite_scaled_bilinear() function in pixman-inlines.h. A remote attacker can trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Pale Moon: 15.0 - 15.3.2

External links

http://cgit.freedesktop.org/pixman/commit/?id=de60e2e0e3eb6084f8f14b63f25b3cbfb012943f
http://rhn.redhat.com/errata/RHSA-2013-0687.html
http://rhn.redhat.com/errata/RHSA-2013-0746.html
http://www.mandriva.com/security/advisories?name=MDVSA-2013:116
http://www.palemoon.org/releasenotes-ng.shtml
http://bugzilla.redhat.com/show_bug.cgi?id=910149
http://support.f5.com/csp/article/K51392553
http://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0077

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.