CVE-2022-37452
CRITICALExim < 4.95 - Heap-Based Buffer Overflow in host_name_lookup
Title source: llmDescription
Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set.
References (7)
Core 7
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/Exim/exim/wiki/EximSecurity
Vendor Advisory x_refsource_misc
https://www.exim.org/static/doc/security/
Exploit, Patch, Third Party Advisory x_refsource_misc
https://github.com/ivd38/exim_overflow
Mailing List, Third Party Advisory x_refsource_misc
https://www.openwall.com/lists/oss-security/2022/08/06/8
Patch, Release Notes, Third Party Advisory x_refsource_misc
https://github.com/Exim/exim/compare/exim-4.94...exim-4.95
Patch, Third Party Advisory x_refsource_misc
https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/08/msg00014.html
Scores
CVSS v3
9.8
EPSS
0.0470
EPSS Percentile
89.5%
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-787
Status
published
Products (2)
debian/debian_linux
10.0
exim/exim
< 4.95
Published
Aug 07, 2022
Tracked Since
Feb 18, 2026