Description
Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports . but some other popular e-mail servers do not.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| exim4 | — | 4.95-4ubuntu2.5 |
References
Similar Threats
- Unknown CLSA-2026-1779369819
- Unknown CLSA-2026-1778174719
- Unknown CLSA-2026-1778003565
- Unknown DEBIAN-CVE-2023-42114
- Unknown CLSA-2024-1709562273
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