Medium severity5.3NVD Advisory· Published May 18, 2020· Updated Jun 17, 2026
CVE-2020-10958
CVE-2020-10958
Description
In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
13cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*range: <2.3.10.1
- (no CPE)range: <2.3.10.1
- Dovecot/Dovecotdescription
- osv-coords10 versionspkg:rpm/almalinux/dovecotpkg:rpm/almalinux/dovecot-develpkg:rpm/opensuse/dovecot23&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/dovecot23&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/dovecot24&distro=openSUSE%20Tumbleweedpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015
< 1:2.3.8-4.el8+ 9 more
- (no CPE)range: < 1:2.3.8-4.el8
- (no CPE)range: < 1:2.3.8-4.el8
- (no CPE)range: < 2.3.10-lp151.2.9.1
- (no CPE)range: < 2.3.16-1.6
- (no CPE)range: < 2.4.0-1.1
- (no CPE)range: < 2.3.10-4.22.1
- (no CPE)range: < 2.3.10-4.22.1
- (no CPE)range: < 2.3.10-11.1
- (no CPE)range: < 2.3.10-4.22.1
- (no CPE)range: < 2.3.10-4.22.1
Patches
Vulnerability mechanics
References
10- seclists.org/fulldisclosure/2020/May/37nvdExploitThird Party Advisory
- www.openwall.com/lists/oss-security/2020/05/18/1nvdMailing ListThird Party Advisory
- dovecot.org/securitynvdVendor Advisory
- www.openwall.com/lists/oss-security/2020/05/18/1nvdMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.htmlnvd
- packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/nvd
- usn.ubuntu.com/4361-1/nvd
- www.debian.org/security/2020/dsa-4690nvd
News mentions
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