Vulnerability CVE-2022-25313
Published: 2022-02-18

Description:
In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

Type:

CWE-400

 (Uncontrolled Resource Consumption ('Resource Exhaustion'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Libexpat project -> Libexpat 
Debian -> Debian linux 

 References:
https://github.com/libexpat/libexpat/pull/558
http://www.openwall.com/lists/oss-security/2022/02/19/1
https://www.debian.org/security/2022/dsa-5085
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