CVE-2019-10691 Affecting dovecot package, versions <1:2.3.4.1-4
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-DEBIAN12-DOVECOT-1544630
- published19 Apr 2019
- disclosed24 Apr 2019
Introduced: 19 Apr 2019
CVE-2019-10691 (opens in a new tab)How to fix?
Upgrade Debian:12 dovecot to version 1:2.3.4.1-4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dovecot package and not the dovecot package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.
References
- https://security-tracker.debian.org/tracker/CVE-2019-10691
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10691
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
- https://security.gentoo.org/glsa/201908-29
- https://dovecot.org/list/dovecot-news/2019-April/000406.html
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html
- http://www.openwall.com/lists/oss-security/2019/04/18/3
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-10691
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/