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fetchmail 6.3.5 and 6.3.6 before 6.3.6-rc4, when refusing a message delivered via the mda option, allows remote attackers to cause a denial of service (crash) via unknown vectors that trigger a NULL pointer dereference when calling the (1) ferror or (2) fflush functions.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade fetchmail | Jul 30, 2024 | Dec 31, 2006 |
| Freebsd | — | Upgrade fetchmail | Dec 10, 2025 | Jan 6, 2007 |
| Gentoo Linux | — | Upgrade net-mail/fetchmail. | Oct 30, 2017 | Dec 31, 2006 |
| Suse | — | Upgrade fetchmailUpgrade fetchmailconf | Feb 17, 2015 | Jun 28, 2013 |
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