An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade exim | Feb 21, 2018 | Feb 8, 2018 |
| Amazon_linux | — | Upgrade exim | Mar 9, 2018 | Feb 8, 2018 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Feb 8, 2018 |
| Debian | — | Upgrade exim4 | Feb 12, 2018 | Feb 8, 2018 |
| Exim | — | Upgrade Exim to version 4.90.1 | Jun 7, 2019 | Feb 8, 2018 |
| Gentoo Linux | — | Upgrade mail-mta/exim. | Mar 7, 2018 | Feb 8, 2018 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 8, 2018 |
| Suse | — | Upgrade eximstats-htmlUpgrade libspf2-2Upgrade libspf2-toolsUpgrade eximUpgrade eximonUpgrade libspf2-devel | Feb 20, 2018 | Feb 8, 2018 |
| Ubuntu | — | Upgrade exim4-daemon-heavyUpgrade exim4-daemon-light | Feb 13, 2018 | Feb 8, 2018 |
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