Vulnerability Report

CVE-2014-6229

Title: Facebook Hiphop Virtual Machine Cryptographic Failures

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2014-6229.

CWE Category CWE-200
Published Date Dec 28, 2014
Modified Date May 06, 2026
Exploit Status Not Found
Score 5.0 CVSS v2.0
Exploit Probability (EPSS)
0.25%

Vulnerability Summary

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 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.

Impacted Vendors

F
facebook 1

Reference Links

http://hhvm.com/blog/6239/hhvm-3-3-0 https://github.com/facebook/hhvm/commit/7135ec229882370a00411aa50030eada6034cc1b http://hhvm.com/blog/6239/hhvm-3-3-0 https://github.com/facebook/hhvm/commit/7135ec229882370a00411aa50030eada6034cc1b
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2014-6229 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected Stack

No specific products linked.