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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 <LF>.<CR><LF> but some other popular e-mail servers do not.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade exim | Aug 22, 2024 | Dec 24, 2023 |
| Amazon_linux | — | Upgrade exim | Jan 24, 2024 | Dec 24, 2023 |
| Debian | — | Upgrade exim4 | Jan 8, 2024 | Dec 24, 2023 |
| Exim | — | Upgrade Exim to version 4.97.1 | Jan 8, 2024 | Dec 24, 2023 |
| Gentoo Linux | — | Upgrade mail-mta/exim. | Feb 19, 2024 | Dec 24, 2023 |
| Suse | — | Upgrade eximUpgrade eximstats-htmlUpgrade eximon | Jan 4, 2024 | Dec 24, 2023 |
| Ubuntu | — | Upgrade exim4-daemon-heavy (Ubuntu Pro)Upgrade eximon4Upgrade exim4-base (Ubuntu Pro)Upgrade exim4Upgrade exim4-daemon-light (Ubuntu Pro)Upgrade exim4-baseUpgrade eximon4 (Ubuntu Pro)Upgrade exim4-dev (Ubuntu Pro)Upgrade exim4 (Ubuntu Pro) | Jan 31, 2024 | Dec 24, 2023 |
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