Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.len; thus, a crafted DKIM-Signature header might lead to a leak of sensitive information from process memory.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade exim | Aug 22, 2024 | May 6, 2021 |
| Amazon_linux | — | Upgrade exim | Aug 5, 2022 | May 4, 2021 |
| Debian | — | Upgrade exim4 | May 6, 2021 | May 6, 2021 |
| Exim | — | Upgrade Exim to version 4.94.2 | May 13, 2021 | May 6, 2021 |
| Gentoo Linux | — | Upgrade mail-mta/exim. | May 5, 2021 | May 4, 2021 |
| Suse | — | Upgrade libspf2-develUpgrade eximonUpgrade eximstats-htmlUpgrade libspf2-2Upgrade eximUpgrade libspf2-tools | May 8, 2021 | May 4, 2021 |
| Ubuntu | — | Upgrade exim4-daemon-heavy (Ubuntu Pro)Upgrade exim4-base (Ubuntu Pro)Upgrade exim4-daemon-lightUpgrade exim4-daemon-light (Ubuntu Pro)Upgrade exim4-daemon-heavyUpgrade exim4-base | May 5, 2021 | May 4, 2021 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub