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.
References (3)
Core 3
Core References
Exploit, Patch, Third Party Advisory x_refsource_misc
https://github.com/Kirin-say/Vulnerabilities/blob/master/Stack_Overflow_in_libesmtp.md
Exploit, Third Party Advisory x_refsource_misc
https://github.com/jbouse-debian/libesmtp/blob/ca5bd0800ef1da234315da4c59716568eb5e6402/ntlm/ntlmstruct.c#L228-L242
Product x_refsource_misc
https://web.archive.org/web/20190528215510/http://brianstafford.info/libesmtp/
Scores
CVSS v3
9.8
EPSS
0.0065
EPSS Percentile
70.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-125
Status
published
Products (1)
libesmtp_project/libesmtp
< 1.0.6
Published
Dec 26, 2019
Tracked Since
Feb 18, 2026