CVE-2022-37452
exim4: Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_n...
CVE-2022-37452 is fixed in 6 products on 1 platform, first by exim4 4.90.1-1ubuntu1.9, released August 7, 2022. It is not reported as exploited. Patch Radar priority: Urgent.
Urgent
CVSS
9.8
critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0377
89th percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| exim4 · Debian 12.15 (bookworm) | 4.94.2-5 | DEBIAN-CVE-2022-37452 | Aug 7, 2022 |
| exim4 · Debian 13.5 (trixie) | 4.94.2-5 | DEBIAN-CVE-2022-37452 | Aug 7, 2022 |
| exim4 · Debian 14 | 4.94.2-5 | DEBIAN-CVE-2022-37452 | Aug 7, 2022 |
| exim4 · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.9 | exim4 4.90.1-1ubuntu1.9 | Aug 7, 2022 |
| exim4 · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.6 | exim4 4.93-13ubuntu1.6 | Aug 7, 2022 |
| exim4-base · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.9 | exim4-base 4.90.1-1ubuntu1.9 | Aug 7, 2022 |
| exim4-base · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.6 | exim4-base 4.93-13ubuntu1.6 | Aug 7, 2022 |
| exim4-config · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.9 | exim4-config 4.90.1-1ubuntu1.9 | Aug 7, 2022 |
| exim4-config · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.6 | exim4-config 4.93-13ubuntu1.6 | Aug 7, 2022 |
| exim4-daemon-heavy · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.9 | exim4-daemon-heavy 4.90.1-1ubuntu1.9 | Aug 7, 2022 |
| exim4-daemon-heavy · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.6 | exim4-daemon-heavy 4.93-13ubuntu1.6 | Aug 7, 2022 |
| exim4-daemon-light · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.9 | exim4-daemon-light 4.90.1-1ubuntu1.9 | Aug 7, 2022 |
| exim4-daemon-light · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.6 | exim4-daemon-light 4.93-13ubuntu1.6 | Aug 7, 2022 |
| eximon4 · Ubuntu 18.04.6 LTS (bionic) | 4.90.1-1ubuntu1.9 | eximon4 4.90.1-1ubuntu1.9 | Aug 7, 2022 |
| eximon4 · Ubuntu 20.04 LTS (focal) | 4.93-13ubuntu1.6 | eximon4 4.93-13ubuntu1.6 | Aug 7, 2022 |
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