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.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-exim | Feb 21, 2018 | Feb 8, 2018 | |
| Amazon_linux | — | amazon-linux-upgrade-exim | Mar 9, 2018 | Feb 8, 2018 |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Feb 8, 2018 | |
| Debian | debian-upgrade-exim4 | Feb 12, 2018 | Feb 8, 2018 | |
| Exim | — | exim-upgrade-4_90_1 | Jun 7, 2019 | Feb 8, 2018 |
| Gentoo Linux | gentoo-linux-upgrade-mail-mta-exim | Mar 7, 2018 | Feb 8, 2018 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | Feb 8, 2018 |
| Suse | — | suse-upgrade-eximsuse-upgrade-eximonsuse-upgrade-eximstats-htmlsuse-upgrade-libspf2-2suse-upgrade-libspf2-develsuse-upgrade-libspf2-tools | Feb 20, 2018 | Feb 8, 2018 |
| Ubuntu | ubuntu-upgrade-exim4-daemon-heavyubuntu-upgrade-exim4-daemon-light | Feb 13, 2018 | Feb 8, 2018 |
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