CVE-2022-37452

EUVD-2022-40078
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
Affected Products (NVD)
VendorProductVersion
eximexim
𝑥
< 4.95
debiandebian_linux
10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
exim4
bookworm
4.96-15+deb12u5
fixed
bookworm (security)
4.96-15+deb12u5
fixed
bullseye
4.94.2-7+deb11u3
fixed
bullseye (security)
4.94.2-7+deb11u4
fixed
sid
4.98-2
fixed
trixie
4.98-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
exim4
bionic
Fixed 4.90.1-1ubuntu1.9
released
focal
Fixed 4.93-13ubuntu1.6
released
jammy
not-affected
kinetic
not-affected
trusty
Fixed 4.82-3ubuntu2.4+esm4
released
xenial
Fixed 4.86.2-2ubuntu2.6+esm2
released
Common Weakness Enumeration
References
https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743
https://github.com/Exim/exim/compare/exim-4.94...exim-4.95
https://github.com/Exim/exim/wiki/EximSecurity
https://github.com/ivd38/exim_overflow
https://lists.debian.org/debian-lts-announce/2022/08/msg00014.html
https://www.exim.org/static/doc/security/
https://www.openwall.com/lists/oss-security/2022/08/06/8
https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743
https://github.com/Exim/exim/compare/exim-4.94...exim-4.95
https://github.com/Exim/exim/wiki/EximSecurity
https://github.com/ivd38/exim_overflow
https://lists.debian.org/debian-lts-announce/2022/08/msg00014.html
https://www.exim.org/static/doc/security/
https://www.openwall.com/lists/oss-security/2022/08/06/8