Vulnerability identifier: #VU31834

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-9709

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in The GetCode_ function in gd_gif_in.c in GD 2.1.1 and earlier, as used in PHP before 5.5.21 and 5.6.x before 5.6.5,. A remote attacker can perform a denial of service (buffer over-read and application crash) via a crafted GIF image that is improperly handled by the gdImageCreateFromGif function.

Mitigation
Update to version 5.6.5.

Vulnerable software versions

PHP: 5.6.0 - 5.6.4

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External links
http://advisories.mageia.org/MGASA-2015-0040.html
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00005.html
http://lists.opensuse.org/opensuse-updates/2015-04/msg00002.html
http://marc.info/?l=bugtraq&m=143403519711434&w=2
http://php.net/ChangeLog-5.php
http://rhn.redhat.com/errata/RHSA-2015-1053.html
http://rhn.redhat.com/errata/RHSA-2015-1066.html
http://rhn.redhat.com/errata/RHSA-2015-1135.html
http://rhn.redhat.com/errata/RHSA-2015-1218.html
http://www.debian.org/security/2015/dsa-3215
http://www.mandriva.com/security/advisories?name=MDVSA-2015:153
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.securityfocus.com/bid/73306
http://www.securitytracker.com/id/1033703
http://www.ubuntu.com/usn/USN-2987-1
http://bitbucket.org/libgd/gd-libgd/commits/47eb44b2e90ca88a08dca9f9a1aa9041e9587f43
http://bugs.php.net/bug.php?id=68601
http://bugzilla.redhat.com/show_bug.cgi?id=1188639
http://security.gentoo.org/glsa/201606-10
http://security.gentoo.org/glsa/201607-04
http://support.apple.com/HT205267

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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.