Medium severity5.3NVD Advisory· Published Feb 12, 2020· Updated Jun 17, 2026
CVE-2020-7957
CVE-2020-7957
Description
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
7cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*range: >=2.3.9,<2.3.9.3
- (no CPE)range: <2.3.9.3
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- Dovecot/Dovecotdescription
- osv-coords2 versionspkg:rpm/opensuse/dovecot23&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/dovecot24&distro=openSUSE%20Tumbleweed
< 2.3.16-1.6+ 1 more
- (no CPE)range: < 2.3.16-1.6
- (no CPE)range: < 2.4.0-1.1
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2020/02/12/2nvdExploitMailing ListThird Party Advisory
- dovecot.org/pipermail/dovecot-news/2020-February/000430.htmlnvdExploitMailing ListVendor Advisory
- dovecot.org/securitynvdVendor Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/nvd
News mentions
0No linked articles in our index yet.