Expat (aka libexpat) integer overflow | CVE-2022-23990
NAME
Expat (aka libexpat) integer overflow
- Platforms Affected:
libexpat libexpat 2.4.3 - Risk Level:
9.8 - Exploitability:
Unproven - Consequences:
Gain Access
DESCRIPTION
Expat (aka libexpat) could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow in the doProlog function. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS 3.0 Information
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Access Vector: Network
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Upgrade to the latest version of libexpat (2.4.4 or later), available from the libexpat GIT Repository. See References.
- Reference Link:
https://github.com/libexpat/libexpat/pull/551 - Reference Link:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23990
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