CVE-2018-20657
"GNU libiberty memory leak vulnerability"
Description
The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, has a memory leak via a crafted string, leading to a denial of service (memory consumption), as demonstrated by cxxfilt, a related issue to CVE-2018-12698.
INFO
Published Date :
Jan. 2, 2019, 2:29 p.m.
Last Modified :
Nov. 6, 2019, 1:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2018-20657 has a 5 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2018-20657
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2018-20657.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/106444 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2019:3352 | |
| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539 | Exploit Issue Tracking Third Party Advisory |
| https://support.f5.com/csp/article/K62602089 | Third Party 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
asp-net-core csharp docker dockerfile javascript react webapi docker-compose
C# Dockerfile HTML JavaScript CSS
None
Dockerfile Shell
Map Vulnerabilities into Different Layers of the Container Image
Python
[ICSE2020] MemLock: Memory Usage Guided Fuzzing
Dockerfile Shell JavaScript C Makefile C++ PLpgSQL HTML Rich Text Format
Test container known to be vulnerable. Do NOT use this apart from for testing
Dockerfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-20657 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-20657 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. 06, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:3352 [No Types Assigned] -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-399 CWE-399 CWE-772 -
Modified Analysis by [email protected]
Mar. 28, 2019
Action Type Old Value New Value Changed Reference Type https://support.f5.com/csp/article/K62602089 No Types Assigned https://support.f5.com/csp/article/K62602089 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:f5:traffix_signaling_delivery_controller:4.4.0:*:*:*:*:*:*:* *cpe:2.3:a:f5:traffix_signaling_delivery_controller:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (including) 5.1.0 -
CVE Modified by [email protected]
Mar. 26, 2019
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K62602089 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 31, 2019
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://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539 No Types Assigned https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/106444 No Types Assigned http://www.securityfocus.com/bid/106444 Third Party Advisory, VDB Entry Added CWE CWE-399 Added CPE Configuration OR *cpe:2.3:a:gnu:binutils:2.31.1:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 04, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106444 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-20657 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-2018-20657
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.42 }} 0.07%
score
0.74720
percentile