CVE-2018-19974
"YARA Read Uninitialized VM Scratch Memory vulnerability"
Description
In YARA 3.8.1, bytecode in a specially crafted compiled rule can read uninitialized data from VM scratch memory in libyara/exec.c. This can allow attackers to discover addresses in the real stack (not the YARA virtual stack).
INFO
Published Date :
Dec. 17, 2018, 7:29 p.m.
Last Modified :
Nov. 7, 2023, 2:55 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2018-19974 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2018-19974.
| URL | Resource |
|---|---|
| https://bnbdr.github.io/posts/extracheese/ | Exploit Third Party Advisory |
| https://github.com/VirusTotal/yara/issues/999 | Issue Tracking Exploit Third Party Advisory |
| https://github.com/bnbdr/swisscheese/ | Exploit Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/ |
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).
Exploits for YARA 3.7.1 & 3.8.1
poc yara cve-2018-12034 cve-2018-12035
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-19974 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-19974 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/ -
CWE Remap by [email protected]
Aug. 24, 2020
Action Type Old Value New Value Changed CWE CWE-200 CWE-908 -
CVE Modified by [email protected]
Oct. 06, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/DFFXDAMP6GJ337LIOTVF5I4T6QGMN3ZR/ [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 04, 2019
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/bnbdr/swisscheese/ No Types Assigned https://github.com/bnbdr/swisscheese/ Exploit, Third Party Advisory Changed Reference Type https://github.com/VirusTotal/yara/issues/999 No Types Assigned https://github.com/VirusTotal/yara/issues/999 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://bnbdr.github.io/posts/extracheese/ No Types Assigned https://bnbdr.github.io/posts/extracheese/ Exploit, Third Party Advisory Added CWE CWE-200 Added CPE Configuration OR *cpe:2.3:a:virustotal:yara:3.8.1:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-19974 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-2018-19974
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.45308
percentile