CVE-2019-15847
GCC POWER9 Backend Volatile Integer Information Disclosure
Description
The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the __builtin_darn intrinsic into a single call, thus reducing the entropy of the random number generator. This occurred because a volatile operation was not specified. For example, within a single execution of a program, the output of every __builtin_darn() call may be the same.
INFO
Published Date :
Sept. 2, 2019, 11:15 p.m.
Last Modified :
Sept. 17, 2020, 1:38 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2019-15847 has a 3 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-2019-15847.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html | Mailing List Third Party Advisory |
| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481 | Issue Tracking 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).
None
TypeScript JavaScript
This action can be used to publish security scans done as part of CI/CD on Github to Azure Security Center.
JavaScript TypeScript
A command line tool which provides an alternative interface to snyk test
snyk
Makefile Dockerfile Crystal Open Policy Agent
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-15847 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-15847 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. 17, 2020
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* versions up to (excluding) 10.0 OR *cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* versions up to (excluding) 7.5.0 *cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* versions from (including) 8.0 up to (excluding) 8.4.0 *cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* versions from (including) 9.0 up to (excluding) 9.3.0 *cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* versions from (including) 10.0 up to (excluding) 10.1.0 Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 26, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00058.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 23, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00057.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 22, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00056.html [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 05, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481 No Types Assigned https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91481 Issue Tracking, Vendor Advisory Added CWE CWE-331 Added CPE Configuration OR *cpe:2.3:a:gnu:gcc:*:*:*:*:*:*:*:* versions up to (excluding) 10.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-15847 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-2019-15847
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.25 }} 0.07%
score
0.65601
percentile