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.
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Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-08-08. NVD baseline CVSS 9.8; sources differ by 0.0.
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.
August 7, 2022
November 21, 2024
Fix landed in Exim/exim commit d4bc023436e4 — awaiting tagged release
https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | exim4-daemon-light (4.90.1-1ubuntu1.9) @ bionic | 2026-05-25 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
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ubuntu
CWE-787