This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2020-28025 →

DEBIAN-CVE-2020-28025

Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.le...

Original description

The description as published by the source.

Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.len; thus, a crafted DKIM-Signature header might lead to a leak of sensitive information from process memory.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 exim4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.94.2-1"}]}]

Debian:13 exim4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.94.2-1"}]}]

Debian:14 exim4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.94.2-1"}]}]

References

advisory security-tracker.debian.org