High severity7.5OSV Advisory· Published Apr 24, 2019· Updated Jun 17, 2026
CVE-2019-10691
CVE-2019-10691
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
81.1.alpha1, 1.1.alpha2, 1.1.alpha4, …+ 2 more
- (no CPE)range: 1.1.alpha1, 1.1.alpha2, 1.1.alpha4, …
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*range: <2.3.5.2
- (no CPE)range: <2.3.5.2
- osv-coords4 versionspkg:rpm/opensuse/dovecot23&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/dovecot23&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/dovecot24&distro=openSUSE%20Tumbleweedpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015
< 2.3.3-lp150.11.1+ 3 more
- (no CPE)range: < 2.3.3-lp150.11.1
- (no CPE)range: < 2.3.16-1.6
- (no CPE)range: < 2.4.0-1.1
- (no CPE)range: < 2.3.3-4.13.1
Patches
Vulnerability mechanics
References
5- lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.htmlnvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2019/04/18/3nvdMailing ListThird Party Advisory
- dovecot.org/list/dovecot-news/2019-April/000406.htmlnvdMailing ListVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/nvd
- security.gentoo.org/glsa/201908-29nvd
News mentions
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