CVE-2018-6345
HHVM number_format Heap Overflow Vulnerability
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).
INFO
Published Date :
Jan. 15, 2019, 10:29 p.m.
Last Modified :
Sept. 21, 2020, 12:29 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-6345.
| URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-6345 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-6345 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 21, 2020
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Removed CWE NIST CWE-119 Added CWE NIST CWE-787 -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CWE Facebook, Inc. CWE-122 -
Reanalysis by [email protected]
Feb. 01, 2019
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 01, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.html No Types Assigned https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.html Release Notes, Vendor Advisory Changed Reference Type https://github.com/facebook/hhvm/commit/190ffdf6c8b1ec443be202c7d69e63a7e3da25e3 No Types Assigned https://github.com/facebook/hhvm/commit/190ffdf6c8b1ec443be202c7d69e63a7e3da25e3 Patch, Third Party Advisory Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* versions up to (including) 3.27.5 *cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* versions from (including) 3.28.0 up to (including) 3.30.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-6345 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-6345
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.00%
score
0.60546
percentile