Buffer underflow in the build_tree function in unpack.c in gzip 1.3.5 allows context-dependent attackers to execute arbitrary code via a crafted leaf count table that causes a write to a negative index.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gzip | Gzip | 1.3.5 (including) | 1.3.5 (including) |
| Red Hat Enterprise Linux 3 | RedHat | gzip-0:1.3.3-13.rhel3 | * |
| Red Hat Enterprise Linux 4 | RedHat | gzip-0:1.3.3-16.rhel4 | * |
| Gzip | Ubuntu | dapper | * |
| Gzip | Ubuntu | devel | * |
| Gzip | Ubuntu | edgy | * |
| Gzip | Ubuntu | feisty | * |