CVE-2018-20651
GNU Binutils BFD NULL Pointer Dereference Denial of Service Vulnerability
Description
A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.
INFO
Published Date :
Jan. 1, 2019, 4:29 p.m.
Last Modified :
Nov. 7, 2023, 2:56 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2018-20651 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-2018-20651.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html | |
| http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html | |
| http://www.securityfocus.com/bid/106440 | Third Party Advisory VDB Entry |
| https://security.gentoo.org/glsa/201908-01 | |
| https://sourceware.org/bugzilla/show_bug.cgi?id=24041 | Exploit Issue Tracking Third Party Advisory |
| https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f | |
| https://support.f5.com/csp/article/K38336243 | Third Party Advisory |
| https://usn.ubuntu.com/4336-1/ |
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).
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-2018-20651 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-20651 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://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f [No types assigned] Removed Reference MITRE https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f -
CVE Modified by [email protected]
Apr. 29, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4336-1/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 05, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html [No Types Assigned] -
CVE Modified by [email protected]
Oct. 31, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 03, 2019
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201908-01 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 28, 2019
Action Type Old Value New Value Changed Reference Type https://support.f5.com/csp/article/K38336243 No Types Assigned https://support.f5.com/csp/article/K38336243 Third Party Advisory -
CVE Modified by [email protected]
Mar. 26, 2019
Action Type Old Value New Value Added Reference https://support.f5.com/csp/article/K38336243 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 18, 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:N/I:N/A:P) Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type http://www.securityfocus.com/bid/106440 No Types Assigned http://www.securityfocus.com/bid/106440 Third Party Advisory, VDB Entry Changed Reference Type https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f No Types Assigned https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=54025d5812ff100f5f0654eb7e1ffd50f2e37f5f Patch, Third Party Advisory Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=24041 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=24041 Exploit, Issue Tracking, Third Party Advisory Added CWE CWE-476 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/106440 [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-2018-20651 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-2018-20651
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.39 }} 0.01%
score
0.73125
percentile