CVE-2022-3620 MEDIUM

CVE-2022-3620: Exim DMARC dmarc.c dmarc_dns_lookup use after free

Vendor Unspecified
Product Exim
Weakness CWE-119
Published October 20, 2022
Last update April 15, 2025
View on NVD All CVEs

CVSS base score

5.6/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

A vulnerability was found in Exim and classified as problematic. This issue affects the function dmarc_dns_lookup of the file dmarc.c of the component DMARC Handler. The manipulation leads to use after free. The attack may be initiated remotely. The name of the patch is 12fb3842f81bcbd4a4519d5728f2d7e0e3ca1445. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-211919.

Key dates

02Disclosure timeline

October 20, 2022 CVE published
April 15, 2025 Record updated