Description
Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the sdl_desc() function does not validate the length of a decoded SDL descriptor from a slice packet. A zero-length descriptor is later used to calculate the number of slice items, causing a division by zero. An unauthenticated attacker can exploit this by sending a crafted slice packet to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.
Problem types
Product status
>= 4.0.0, < 4.0.7
>= 5.0.0, < 5.0.4
References
github.com/...rebird/security/advisories/GHSA-g99w-prq5-29c6
github.com/FirebirdSQL/firebird/releases/tag/v3.0.14
github.com/FirebirdSQL/firebird/releases/tag/v4.0.7
github.com/FirebirdSQL/firebird/releases/tag/v5.0.4