What is CVE-2022-3620?

CVE-2022-3620 is a medium-severity vulnerability in Exim, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.6/10. Published 2022-10-20.

How severe is CVE-2022-3620?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Buffer overflow in Exim

CVE-2022-3620

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.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (50.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

Affected products

Exim
Unspecified Exim — versions n/a
Fedoraproject Fedora — versions 35, 36, 37

Weakness classification (CWE)

References

cna@vuldb.com (Patch, Mailing List, Vendor Advisory)
cna@vuldb.com (Third Party Advisory)
cna@vuldb.com (vendor-advisory, Third Party Advisory)
cna@vuldb.com (vendor-advisory, Third Party Advisory)
cna@vuldb.com (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2022-3620?: CVE-2022-3620 is a medium-severity vulnerability in Exim, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.6/10. Published 2022-10-20.
How severe is CVE-2022-3620?: Medium severity. CVSS v3 base score is 5.6 out of 10.