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TI-2014-05127 Aliases CVE-2014-6229GHSA-fgvh-xmpw-4vhf

The HashContext class in hphp/runtime/ext/ext_hash.cpp in Facebook HipHop Virtual Machine…

Priority LOW 26CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Partial · None · None
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

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.

Why it matters now

EPSS 0.01681 77th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:facebook:hiphop_virtual_machine:*:*:*:*:*:*:*:*up to 3.2.0VulnerableMeta
  • cpe:2.3:a:facebook:hiphop_virtual_machine:*:*:*:*:*:*:*:* Versions up to 3.2.0 Vulnerable ·Meta

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2014-6229
  2. 2026-10-03 Alias added: GHSA-fgvh-xmpw-4vhf

References

Advisory 1

Other 1

  • TI-2019-02635 Heap-based buffer overflow in Meta HHVM CVSS 3.1CRITICAL 9.8
  • TI-2014-01747 CRLF injection vulnerability in the LightProcess protocol implementation in… CVSS 2.0HIGH 7.5
  • TI-2014-05126 Integer overflow in the string_chunk_split function in hphp/runtime/base/zend-string.cpp… CVSS 2.0HIGH 7.5
  • TI-2014-01748 Facebook HipHop Virtual Machine (HHVM) before 3.1.0 does not drop supplemental group… CVSS 2.0MEDIUM 5.0
  • TI-2014-04389 The mcrypt_create_iv function in hphp/runtime/ext/mcrypt/ext_mcrypt.cpp in Facebook… CVSS 2.0MEDIUM 5.0
  • TI-2014-07899 Cross-site scripting (XSS) vulnerability in the WddxPacket::recursiveAddVar function in… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences