Vulnerability identifier: #VU45193

Vulnerability risk: Medium

CVSSv3.1: 5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:U/RC:C]

CVE-ID: CVE-2011-0708

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: Yes

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 exif.c in the Exif extension in PHP before 5.3.6 on 64-bit platforms performs an incorrect cast, which. A remote attacker can perform a denial of service (application crash) via an image with a crafted Image File Directory (IFD) that triggers a buffer over-read.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

PHP: 3.0 - 3.0.18, 4.0 - 4.0.7, 4.1.0 - 4.1.2, 4.2.0 - 4.2.3, 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.4

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External links
http://bugs.php.net/bug.php?id=54002
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057709.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057710.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056642.html
http://marc.info/?l=bugtraq&m=133469208622507&w=2
http://openwall.com/lists/oss-security/2011/02/14/1
http://openwall.com/lists/oss-security/2011/02/16/7
http://rhn.redhat.com/errata/RHSA-2012-0071.html
http://securityreason.com/securityalert/8114
http://support.apple.com/kb/HT5002
http://svn.php.net/viewvc?view=revision&revision=308316
http://www.debian.org/security/2011/dsa-2266
http://www.exploit-db.com/exploits/16261/
http://www.mandriva.com/security/advisories?name=MDVSA-2011:052
http://www.mandriva.com/security/advisories?name=MDVSA-2011:053
http://www.php.net/archive/2011.php
http://www.php.net/ChangeLog-5.php
http://www.php.net/releases/5_3_6.php
http://www.redhat.com/support/errata/RHSA-2011-1423.html
http://www.securityfocus.com/bid/46365
http://www.vupen.com/english/advisories/2011/0744
http://www.vupen.com/english/advisories/2011/0764
http://www.vupen.com/english/advisories/2011/0890
http://bugzilla.redhat.com/show_bug.cgi?id=680972

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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. However, proof of concept for this vulnerability is available.