Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package tnef (opens in a new tab)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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Test your applications- Snyk IDSNYK-UBUNTU1904-TNEF-533518
- published11 Nov 2019
- disclosed11 Nov 2019
Introduced: 11 Nov 2019
CVE-2019-18849 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:19.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tnef package and not the tnef package as distributed by Ubuntu.
In tnef before 1.4.18, an attacker may be able to write to the victim's .ssh/authorized_keys file via an e-mail message with a crafted winmail.dat application/ms-tnef attachment, because of a heap-based buffer over-read involving strdup.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-18849
- https://lists.debian.org/debian-lts-announce/2019/11/msg00035.html
- https://security-tracker.debian.org/tracker/CVE-2019-18849
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RMKFSHPMOZL7MDWU5RYOTIBTRWSZ4Z6X/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W7CPKBW4QZ4VIY4UXIUVUSHRJ4R2FROE/
- https://github.com/verdammelt/tnef/compare/1.4.17...1.4.18
- https://github.com/verdammelt/tnef/pull/40
- https://lists.debian.org/debian-lts-announce/2021/08/msg00025.html
- https://usn.ubuntu.com/4524-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMKFSHPMOZL7MDWU5RYOTIBTRWSZ4Z6X/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W7CPKBW4QZ4VIY4UXIUVUSHRJ4R2FROE/