Out-of-bounds Write Affecting exim4 package, versions <4.94.2-5
Snyk CVSS
Attack Complexity
Low
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
EPSS
0.47% (76th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN12-EXIM4-2976421
- published 8 Aug 2022
- disclosed 7 Aug 2022
Introduced: 7 Aug 2022
CVE-2022-37452 Open this link in a new tabHow to fix?
Upgrade Debian:12
exim4
to version 4.94.2-5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim4
package and not the exim4
package as distributed by Debian
.
See How to fix?
for Debian:12
relevant fixed versions and status.
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
- https://security-tracker.debian.org/tracker/CVE-2022-37452
- https://www.exim.org/static/doc/security/
- https://github.com/ivd38/exim_overflow
- https://www.openwall.com/lists/oss-security/2022/08/06/8
- https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743
- https://github.com/Exim/exim/wiki/EximSecurity
- https://github.com/Exim/exim/compare/exim-4.94...exim-4.95
- https://lists.debian.org/debian-lts-announce/2022/08/msg00014.html