Remote code execution in libexpat



Published: 2022-09-21
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-40674
CWE-ID CWE-416
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
expat
Universal components / Libraries / Libraries used by multiple products

Vendor libexpat.org

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU67532

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-40674

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in the doContent() function in xmlparse.c. A remote attacker can pass specially crafted input to the application that is using the affected library, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

expat: 2.0.0 - 2.4.8


CPE2.3 External links

http://github.com/libexpat/libexpat/pull/629
http://github.com/libexpat/libexpat/pull/640

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



###SIDEBAR###