Denial of service in libxml2

Published: 2017-07-25 | Updated: 2017-12-05

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2017-16932
CWE-ID	CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Libxml2 Universal components / Libraries / Libraries used by multiple products
Vendor	Gnome Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU9542

Risk: Low

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:Clear]

CVE-ID: CVE-2017-16932

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in parser.c function due to improper handling of certain parameter entities. A remote attacker can supply specially constructed XML data, trigger resource exhaustion and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Update to version 2.9.5.

Vulnerable software versions

Libxml2: 2.9.0 - 2.9.4

CPE2.3

External links

https://xmlsoft.org/news.html

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.