#VU32500 Input validation error in PHP - CVE-2014-3538
Vulnerability identifier: #VU32500
Vulnerability risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2014-3538
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
PHP
Universal components / Libraries /
Scripting languages
Vendor: PHP Group
Description
The vulnerability allows remote attackers to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (CPU consumption) via a crafted file that triggers backtracking during processing of an awk rule.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
PHP: 5.0 - 5.0.5, 5.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
External links
https://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
https://mx.gw.com/pipermail/file/2014/001553.html
https://openwall.com/lists/oss-security/2014/06/30/7
https://rhn.redhat.com/errata/RHSA-2014-1327.html
https://rhn.redhat.com/errata/RHSA-2014-1765.html
https://rhn.redhat.com/errata/RHSA-2014-1766.html
https://rhn.redhat.com/errata/RHSA-2016-0760.html
https://secunia.com/advisories/60696
https://www.debian.org/security/2014/dsa-3008
https://www.debian.org/security/2014/dsa-3021
https://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
https://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
https://www.securityfocus.com/bid/68348
https://bugzilla.redhat.com/show_bug.cgi?id=1098222
https://github.com/file/file/commit/4a284c89d6ef11aca34da65da7d673050a5ea320
https://github.com/file/file/commit/69a5a43b3b71f53b0577f41264a073f495799610
https://github.com/file/file/commit/71a8b6c0d758acb0f73e2e51421a711b5e9d6668
https://github.com/file/file/commit/74cafd7de9ec99a14f4480927580e501c8f852c3
https://github.com/file/file/commit/758e066df72fb1ac08d2eea91ddc3973d259e991
https://support.apple.com/HT204659
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.
