Description
Double Precision Courier e-mail MTA allows remote attackers to cause a denial of service (CPU consumption) via a message with an extremely large or negative value for the year, which causes a tight loop.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | courier | 0.46 | — |
| Debian 13 | courier | 0.46 | — |
| Debian 12 | courier | 0.46 | — |
References
- courier-mta-year-dos(9228) vdb-entry
- 5052 vdb-entry
- 4908 vdb-entry
- http://sourceforge.net/project/shownotes.php?release_id=93065