#VU59965 Infinite loop in Xerces2 Java XML Parser


Published: 2022-01-25

Vulnerability identifier: #VU59965

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-2022-23437

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Xerces2 Java XML Parser
Universal components / Libraries / Software for developers

Vendor: Apache Foundation

Description

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

The vulnerability exists due to infinite loop when parsing XML documents. A remote attacker can supply a specially crafted XML document, consume all available system resources and cause denial of service conditions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Xerces2 Java XML Parser: 2.0.0 - 2.12.1


External links
http://lists.apache.org/thread/6pjwm10bb69kq955fzr1n0nflnjd27dl
http://www.openwall.com/lists/oss-security/2022/01/24/3


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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