#VU69579 Use-after-free in Exim - CVE-2022-3559

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Main Vulnerability Database Vulnerabilities #VU69579

#VU69579 Use-after-free in Exim - CVE-2022-3559

Published: November 24, 2022


Vulnerability identifier: #VU69579
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-3559
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Exim
Software vendor:
Exim

Description

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

The vulnerability exists due to a use-after-free error in the regex handler. A remote attacker can send specially crafted data to the mail server, trigger a use-after-free error and perform a denial of service (DoS) attack.

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


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links