Description
The multisite feature in Drupal 6.x before 6.32 and 7.x before 7.29 allows remote attackers to cause a denial of service via a crafted HTTP Host header, related to determining which configuration file to use.
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 7 | drupal7 | 7.14-2+deb7u5 | DSA-2983-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | drupal7 | No fix yet | — |
Advisories 1
- DSA-2983-1 drupal7 - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-2983 vendor-advisory
- https://www.drupal.org/SA-CORE-2014-003