National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-6345 Detail

Current Description

The function number_format is vulnerable to a heap overflow issue when its second argument ($dec_points) is excessively large. The internal implementation of the function will cause a string to be created with an invalid length, which can then interact poorly with other functions. This affects all supported versions of HHVM (3.30.1 and 3.27.5 and below).

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 9.8 CRITICAL
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/facebook/hhvm/commit/190ffdf6c8b1ec443be202c7d69e63a7e3da25e3 Patch Third Party Advisory
https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.html Release Notes Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer NIST  
CWE-122 Heap-based Buffer Overflow Facebook, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
3.27.5
 cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
3.28.0
Up to (including)
3.30.1


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-6345
NVD Published Date:
01/15/2019
NVD Last Modified:
10/09/2019