Format string vulnerability in the inputAnswer function in file.c in w3m before 0.5.2, when run with the dump or backend option, allows remote attackers to execute arbitrary code via format string specifiers in the Common Name (CN) field of an SSL certificate associated with an https URL.
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| W3m | W3m | 0.5.1 (including) | 0.5.1 (including) |
| W3m | Ubuntu | dapper | * |
| W3m | Ubuntu | devel | * |
| W3m | Ubuntu | edgy | * |
| W3m | Ubuntu | feisty | * |