CVE-2011-4415 The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of envir...
LowCVSS 1.2
EPSS 3.0%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, does not restrict the size of values of environment variables, which allows local users to cause a denial of service (memory consumption or NULL pointer dereference) via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, related to (1) the "len +=" statement and (2) the apr_pcalloc function call, a different vulnerability than CVE-2011-3607.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/apache2(Debian:12) | < 2.4.1-1 | 2.4.1-1 |
| debian/apache2(Debian:13) | < 2.4.1-1 | 2.4.1-1 |
| debian/apache2(Debian:14) | < 2.4.1-1 | 2.4.1-1 |
| Apache HTTP Server | = 2.0 | No fix listed |
| Apache HTTP Server | = 2.0.9 | No fix listed |
| Apache HTTP Server | = 2.0.28 | No fix listed |
| Apache HTTP Server | = 2.0.28-beta | No fix listed |
| Apache HTTP Server | = 2.0.32 | No fix listed |
| Apache HTTP Server | = 2.0.32-beta | No fix listed |
| Apache HTTP Server | = 2.0.34-beta | No fix listed |
| Apache HTTP Server | = 2.0.35 | No fix listed |
| Apache HTTP Server | = 2.0.36 | No fix listed |
| Apache HTTP Server | = 2.0.37 | No fix listed |
| Apache HTTP Server | = 2.0.38 | No fix listed |
| Apache HTTP Server | = 2.0.39 | No fix listed |
| Apache HTTP Server | = 2.0.40 | No fix listed |
| Apache HTTP Server | = 2.0.41 | No fix listed |
| Apache HTTP Server | = 2.0.42 | No fix listed |
| Apache HTTP Server | = 2.0.43 | No fix listed |
| Apache HTTP Server | = 2.0.44 | No fix listed |
| Apache HTTP Server | = 2.0.45 | No fix listed |
| Apache HTTP Server | = 2.0.46 | No fix listed |
| Apache HTTP Server | = 2.0.47 | No fix listed |
| Apache HTTP Server | = 2.0.48 | No fix listed |
| Apache HTTP Server | = 2.0.49 | No fix listed |
Show 33 more
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache HTTP Server | = 2.0.50 | No fix listed |
| Apache HTTP Server | = 2.0.51 | No fix listed |
| Apache HTTP Server | = 2.0.52 | No fix listed |
| Apache HTTP Server | = 2.0.53 | No fix listed |
| Apache HTTP Server | = 2.0.54 | No fix listed |
| Apache HTTP Server | = 2.0.55 | No fix listed |
| Apache HTTP Server | = 2.0.56 | No fix listed |
| Apache HTTP Server | = 2.0.57 | No fix listed |
| Apache HTTP Server | = 2.0.58 | No fix listed |
| Apache HTTP Server | = 2.0.59 | No fix listed |
| Apache HTTP Server | = 2.0.60 | No fix listed |
| Apache HTTP Server | = 2.0.61 | No fix listed |
| Apache HTTP Server | = 2.0.63 | No fix listed |
| Apache HTTP Server | = 2.0.64 | No fix listed |
| Apache HTTP Server | = 2.2.0 | No fix listed |
| Apache HTTP Server | = 2.2.1 | No fix listed |
| Apache HTTP Server | = 2.2.2 | No fix listed |
| Apache HTTP Server | = 2.2.3 | No fix listed |
| Apache HTTP Server | = 2.2.4 | No fix listed |
| Apache HTTP Server | = 2.2.6 | No fix listed |
| Apache HTTP Server | = 2.2.8 | No fix listed |
| Apache HTTP Server | = 2.2.9 | No fix listed |
| Apache HTTP Server | = 2.2.10 | No fix listed |
| Apache HTTP Server | = 2.2.11 | No fix listed |
| Apache HTTP Server | = 2.2.12 | No fix listed |
| Apache HTTP Server | = 2.2.13 | No fix listed |
| Apache HTTP Server | = 2.2.14 | No fix listed |
| Apache HTTP Server | = 2.2.15 | No fix listed |
| Apache HTTP Server | = 2.2.16 | No fix listed |
| Apache HTTP Server | = 2.2.18 | No fix listed |
| Apache HTTP Server | = 2.2.19 | No fix listed |
| Apache HTTP Server | = 2.2.20 | No fix listed |
| Apache HTTP Server | = 2.2.21 | No fix listed |
References
- Debian Security Tracker CVE-2011-4415 vendor-advisory
- HPSBMU02786 vendor-advisory
- www.gossamer-threads.com
- www.halfdog.net exploit patch
- www.halfdog.net exploit