CVE-2022-37452
Published: 7 August 2022
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
exim4 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.90.1-1ubuntu1.9)
|
| focal |
Released
(4.93-13ubuntu1.6)
|
|
| jammy |
Not vulnerable
(4.95-4ubuntu2.1)
|
|
| kinetic |
Not vulnerable
|
|
| trusty |
Released
(4.82-3ubuntu2.4+esm4)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(4.94.2-5)
|
|
| xenial |
Released
(4.86.2-2ubuntu2.6+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |