Out-of-bounds Read in Libesmtp Project
CVE-2019-19977
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.029 (86.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 86.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/Kirin-say/Vulnerabilities/blob/master/Stack_Overflow_in_libesmtp.md (Exploit, Patch, Third Party Advisory)
- github.com/jbouse-debian/libesmtp/blob/ca5bd0800ef1da234315da4c59716568eb5e6402… (Exploit, Third Party Advisory)
- web.archive.org/web/20190528215510/http://brianstafford.info/libesmtp/ (Product)
Frequently asked questions
- What is CVE-2019-19977?
- CVE-2019-19977 is a critical-severity vulnerability in Libesmtp Project, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2019-12-26.
- How severe is CVE-2019-19977?
- Critical severity. CVSS v3 base score is 9.8 out of 10.