#VU40512 Buffer overflow in PHP - CVE-2016-1903

Vulnerability identifier: #VU40512

Vulnerability risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-1903

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

The gdImageRotateInterpolated function in ext/gd/libgd/gd_interpolation.c in PHP before 5.5.31, 5.6.x before 5.6.17, and 7.x before 7.0.2 allows remote attackers to obtain sensitive information or cause a denial of service (out-of-bounds read and application crash) via a large bgd_color argument to the imagerotate function.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PHP: 5.6.0 - 5.6.16, 7.0.0 - 7.0.1

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External links
https://lists.opensuse.org/opensuse-updates/2016-01/msg00099.html
https://lists.opensuse.org/opensuse-updates/2016-02/msg00037.html
https://rhn.redhat.com/errata/RHSA-2016-2750.html
https://www.openwall.com/lists/oss-security/2016/01/14/8
https://www.php.net/ChangeLog-5.php
https://www.php.net/ChangeLog-7.php
https://www.securityfocus.com/bid/79916
https://www.securitytracker.com/id/1034608
https://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.461720
https://www.ubuntu.com/usn/USN-2952-1
https://www.ubuntu.com/usn/USN-2952-2
https://bugs.php.net/bug.php?id=70976
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731

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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.