Input validation error in libexpat expat



Published: 2014-01-21 | Updated: 2021-10-11
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2013-0340
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
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expat
Universal components / Libraries / Libraries used by multiple products

Vendor libexpat.org

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU42119

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2013-0340

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows remote attackers to cause a denial of service attack.

The vulnerability exists due to insufficient validation of user-supplied input within the expat library, when processing XML files. A remote attacker can pass specially crafted XML content to the affected library and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

expat: 1.95.1 - 2.0.1

External links

http://openwall.com/lists/oss-security/2013/02/22/3
http://securitytracker.com/id?1028213
http://www.openwall.com/lists/oss-security/2013/04/12/6
http://security.gentoo.org/glsa/201701-21


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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