Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to "warn control = dkim_disable_verify," allows remote attackers to execute arbitrary code via an email from a malicious DNS server.
CVSS Details
- CVSS 3.1 Base Score: 7.3
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade exim | Aug 30, 2017 | Oct 31, 2012 |
| Debian | — | Upgrade exim4 | Jul 30, 2024 | Oct 31, 2012 |
| Exim | — | Update Exim to the latest version | Jun 7, 2019 | Oct 31, 2012 |
| Freebsd | — | Upgrade exim | Dec 10, 2025 | Oct 26, 2012 |
| Gentoo Linux | — | Upgrade mail-mta/exim. | Oct 30, 2017 | Oct 31, 2012 |
| Suse | — | Upgrade eximon-debuginfoUpgrade exim-debugsourceUpgrade eximUpgrade exim-debuginfoUpgrade eximstats-htmlUpgrade eximon | Feb 17, 2015 | Oct 31, 2012 |
| Ubuntu | — | Upgrade exim4-daemon-heavyUpgrade exim4-daemon-lightUpgrade exim4-daemon-custom | Nov 8, 2024 | Oct 31, 2012 |
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