Link Following Affecting exim4 package, versions <4.94.2-1
Threat Intelligence
EPSS
0.04% (14th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN11-EXIM4-1279382
- published 5 May 2021
- disclosed 6 May 2021
Introduced: 5 May 2021
CVE-2020-28007 Open this link in a new tabHow to fix?
Upgrade Debian:11 exim4 to version 4.94.2-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the log directory (owned by a non-root user), a symlink or hard link attack allows overwriting critical root-owned files anywhere on the filesystem.
CVSS Scores
version 3.1