Ubuntu update for FreeType

1) Integer overflow

EUVDB-ID: #VU6112

Risk: Critical

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2011-0226

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow when handling of Type 1 fonts by FreeType. A remote attacker can send a specially crafted PDF file, trick the victim into opening it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: the vulnerability was being actively exploited.

Mitigation

Update the affected packages

Ubuntu 11.04:

libfreetype6 2.4.4-1ubuntu2.1

Ubuntu 10.10:

libfreetype6 2.4.2-2ubuntu0.2

Vulnerable software versions

Apple iOS: 3.0 - 4.3.4

CPE2.3

• cpe:2.3:o:apple:apple_ios:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:3.1.3:*:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:3.2.2:*:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:4.0.2:*:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:4.2.8:*:*:*:*:*:*:*
• cpe:2.3:o:apple:apple_ios:4.3.4:*:*:*:*:*:*:*

External links

https://www.ubuntu.com/usn/usn-1173-1/

Q & A

Can this vulnerability be exploited remotely?

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

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.