CVE-2016-6871

Published: Feb 17, 2017Modified: May 13, 2026

9.8

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

Integer overflow in bcmath in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors, which triggers a buffer overflow.

Affected (1)

Products: Facebook: Hhvm

Facebook

1 product

Hhvm

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Facebook Hhvm	Up to 3.14.5

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (6)

http://www.openwall.com/lists/oss-security/2016/08/11/1

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

http://www.openwall.com/lists/oss-security/2016/08/19/1

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

https://github.com/facebook/hhvm/commit/c00fc9d3003eb06226b58b6a48555f1456ee2475

Source: cve@mitre.org

Patch

http://www.openwall.com/lists/oss-security/2016/08/11/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListPatchThird Party Advisory

http://www.openwall.com/lists/oss-security/2016/08/19/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListPatchThird Party Advisory

https://github.com/facebook/hhvm/commit/c00fc9d3003eb06226b58b6a48555f1456ee2475

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

Timeline

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