Vulnerability identifier: #VU24488

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7595

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Libxml2
Universal components / Libraries / Libraries used by multiple products

Vendor: Gnome Development Team

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in xmlStringLenDecodeEntities in parser.c. A remote attacker can consume all available system resources and cause denial of service conditions in a certain end-of-file situation.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Libxml2: 2.9.10

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External links
http://gitlab.gnome.org/GNOME/libxml2/commit/0e1a49c89076

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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.