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Vulnerability · Published Oct 20, 2022 · Assigned by VulDB

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

Medium 5.6

In plain English

A medium-severity memory corruption in Exim from unspecified. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.6Medium
Exploit odds (30 days)1.0%top 36.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12exim44.96-7DEBIAN-CVE-2022-3620
Debian:13exim44.96-7DEBIAN-CVE-2022-3620
Debian:14exim44.96-7DEBIAN-CVE-2022-3620

Affected products (as reported)

VendorProductVersions
unspecified Exim n/a

Weakness: CWE-119 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References