| Package | Affected versions | Patched versions |
|---|---|---|
| http server | = 2.2.17= 2.2.18= 2.2.19= 2.2.20= 2.2.21 |
The log_cookie function in mod_log_config.c in the mod_log_config module in the Apache HTTP Server 2.2.17 through 2.2.21, when a threaded MPM is used, does not properly handle a %{}C format string, which allows remote attackers to cause a denial of service (daemon crash) via a cookie that lacks both a name and a value.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free