Critical severity9.8NVD Advisory· Published Dec 26, 2019· Updated Jun 17, 2026
CVE-2019-19977
CVE-2019-19977
Description
libESMTP through 1.0.6 mishandles domain copying into a fixed-size buffer in ntlm_build_type_2 in ntlm/ntlmstruct.c, as demonstrated by a stack-based buffer over-read.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
38- libESMTP/libESMTPdescription
- osv-coords36 versionspkg:rpm/opensuse/libesmtp&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/libesmtp&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/libesmtp&distro=openSUSE%20Tumbleweedpkg:rpm/suse/libesmtp&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/libesmtp&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/libesmtp&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/libesmtp&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/libesmtp&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/libesmtp&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/libesmtp&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/libesmtp&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/libesmtp&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/libesmtp&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 1.0.6-lp152.4.3.1+ 35 more
- (no CPE)range: < 1.0.6-lp152.4.3.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.1.0-1.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.4-157.18.3.1
- (no CPE)range: < 1.0.4-157.18.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-150.4.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
- (no CPE)range: < 1.0.6-17.3.1
Patches
Vulnerability mechanics
References
3- github.com/Kirin-say/Vulnerabilities/blob/master/Stack_Overflow_in_libesmtp.mdnvdExploitPatchThird Party Advisory
- github.com/jbouse-debian/libesmtp/blob/ca5bd0800ef1da234315da4c59716568eb5e6402/ntlm/ntlmstruct.cnvdExploitThird Party Advisory
- web.archive.org/web/20190528215510/http://brianstafford.info/libesmtp/nvdProduct
News mentions
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