Gentoo update for Graphite

1) Out-of-bounds write

EUVDB-ID: #VU6315

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5436

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to boundary error in the Graphite 2 library when processing Graphite fonts. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.

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

Mitigation

Update the affected packages.
media-gfx/graphite2 to version: 1.3.8-r1

Vulnerable software versions

Gentoo Linux: All versions

External links

http://security.gentoo.org/glsa/201706-25

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.