Buffer overflow in libxml2 (Alpine package)



Published: 2012-12-07
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2012-5134
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		libxml2 (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32739

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-5134

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

Heap-based buffer underflow in the xmlParseAttValueComplex function in parser.c in libxml2 2.9.0 and earlier, as used in Google Chrome before 23.0.1271.91 and other products, allows remote attackers to cause a denial of service or possibly execute arbitrary code via crafted entities in an XML document.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libxml2 (Alpine package): 2.7.8-r4

CPE2.3 External links

http://git.alpinelinux.org/aports/commit/?id=8906957df02daf5a1dac5ce83aa3580d3bf037a2
http://git.alpinelinux.org/aports/commit/?id=a19dcca62117d3b62e98097b12ca9ba5311ca693
http://git.alpinelinux.org/aports/commit/?id=2321d97dfa2dbe62e073fe496d9f35328cec41b5


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.



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