CVE-2014-6229 The HashContext class in hphp/runtime/ext/ext_hash.cpp in Facebook HipHop Virtual Machine (HHVM) before 3.3.0 incorrectly expects that a certain key string uses '\0' for termination, which allows remo...
MediumCVSS 5.0
EPSS 1.7%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The HashContext class in hphp/runtime/ext/ext_hash.cpp in Facebook HipHop Virtual Machine (HHVM) before 3.3.0 incorrectly expects that a certain key string uses '\0' for termination, which allows remote attackers to obtain sensitive information by leveraging read access beyond the end of the string, and makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging truncation of a string containing an internal '\0' character.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| facebook hiphop virtual machine | <= 3.2.0 | No fix listed |
References
- hhvm.com vendor-advisory
- github.com