CVE-2017-5923
YARA Grammar Heap Buffer Overflow
Description
libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.
INFO
Published Date :
April 3, 2017, 5:59 a.m.
Last Modified :
May 2, 2017, 1:59 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
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-2017-5923.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/98080 | |
| https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636 | Patch Vendor Advisory |
| https://github.com/VirusTotal/yara/issues/597 | Exploit Issue Tracking Patch |
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-2017-5923 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-5923 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]
May. 02, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/98080 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 10, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/VirusTotal/yara/issues/597 No Types Assigned https://github.com/VirusTotal/yara/issues/597 Exploit, Issue Tracking, Patch Changed Reference Type https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636 No Types Assigned https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636 Patch, Vendor Advisory Added CWE CWE-125 Added CPE Configuration OR *cpe:2.3:a:virustotal:yara:3.5.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-5923 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-2017-5923
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.62 }} 0.00%
score
0.75547
percentile