Buffer overflow in php (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU32631

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-4113

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

ext/xml/xml.c in PHP before 5.3.27 does not properly consider parsing depth, which allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a crafted document that is processed by the xml_parse_into_struct function.

Mitigation

Install update from vendor's website.

Vulnerable software versions

php (Alpine package): 5.3.3-r0 - 5.3.26-r0

CPE2.3

• cpe:2.3:o:alpine:php_alpine_package:5.3.3-r0:*:*:*:*:alpine_linux:*:1.10
• cpe:2.3:o:alpine:php_alpine_package:5.3.3-r2:*:*:*:*:alpine_linux:*:1.10
• cpe:2.3:o:alpine:php_alpine_package:5.3.3-r3:*:*:*:*:alpine_linux:*:1.10

External links

https://git.alpinelinux.org/aports/commit/?id=1a8b152e8a88f0dbf4b4041048286b6c17476061
https://git.alpinelinux.org/aports/commit/?id=557e3af1ace8b185c2831c4ebe37fc8c5326c189
https://git.alpinelinux.org/aports/commit/?id=1be6dba9064c72276b4cebc2a9ade9b279d90d84
https://git.alpinelinux.org/aports/commit/?id=805bb44105b1f929aabd924795f9b6280fc50f82

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.