OS Command Injection The advisory has been revoked - it doesn't affect any version of package sa-exim (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-UBUNTU2004-SAEXIM-641199
- published10 Sept 2020
- disclosed22 Dec 2019
Introduced: 22 Dec 2019
CVE-2019-19920 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream sa-exim package and not the sa-exim package as distributed by Ubuntu.
sa-exim 4.2.1 allows attackers to execute arbitrary code if they can write a .cf file or a rule. This occurs because Greylisting.pm relies on eval (rather than direct parsing and/or use of the taint feature). This issue is similar to CVE-2018-11805.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-19920
- https://bugs.debian.org/946829#24
- https://marc.info/?l=spamassassin-users&m=157668107325768&w=2
- https://marc.info/?l=spamassassin-users&m=157668305026635&w=2
- https://lists.debian.org/debian-lts-announce/2020/01/msg00006.html
- https://usn.ubuntu.com/4520-1/