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5.5
MEDIUM CVSS 3.1
CVE-2021-20284
GNU Binutils Heap-Based Buffer Overflow Vulnerability
Description

A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability.

INFO

Published Date :

March 26, 2021, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 5:46 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-20284 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.

ID Vendor Product Action
1 Netapp ontap_select_deploy_administration_utility
2 Netapp cloud_backup
1 Gnu binutils
: Total Affected Vendor : 2 | Products : 3
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
Solution
Update GNU Binutils to address a heap-based buffer overflow vulnerability.
  • Update the affected binutils packages.
  • Update the binutils-devel packages if applicable.
Public PoC/Exploit Available at Github

CVE-2021-20284 has a 2 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-2021-20284.

URL Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1937784 Exploit Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/202208-30 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0010/ Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=26931 Exploit Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1937784 Exploit Issue Tracking Third Party Advisory
https://security.gentoo.org/glsa/202208-30 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0010/ Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=26931 Exploit Issue Tracking Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-20284 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-2021-20284 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

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).

Profile Photo
sumithra28thiru/root-casuse-analysis

None

JavaScript

Updated: 1 year ago
0 stars 0 fork 0 watcher
Born at : Aug. 16, 2024, 4:20 p.m. This repo has been linked 4 different CVEs too.
Profile Photo
deezombiedude612/rca-tool

ChatGPT Root Cause Analysis Tool

ntu-scse se6005 nanyang-technological-university ntu scse

TypeScript JavaScript

Updated: 8 months, 2 weeks ago
4 stars 0 fork 0 watcher
Born at : Dec. 11, 2023, 4:33 p.m. This repo has been linked 4 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-20284 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-20284 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1937784
    Added Reference https://security.gentoo.org/glsa/202208-30
    Added Reference https://security.netapp.com/advisory/ntap-20210521-0010/
    Added Reference https://sourceware.org/bugzilla/show_bug.cgi?id=26931
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 12, 2023

    Action Type Old Value New Value
    Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
    Removed Reference https://access.redhat.com/errata/RHSA-2021:4364 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2021-20284 [No Types Assigned]
    Added CWE Red Hat, Inc. CWE-119
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
    Added Reference https://access.redhat.com/errata/RHSA-2021:4364 [No Types Assigned]
    Added Reference https://access.redhat.com/security/cve/CVE-2021-20284 [No Types Assigned]
    Removed CWE Red Hat, Inc. CWE-119
    Removed CWE Reason CWE-119 / More specific CWE option available
  • Modified Analysis by [email protected]

    Sep. 30, 2022

    Action Type Old Value New Value
    Changed Reference Type https://security.gentoo.org/glsa/202208-30 No Types Assigned https://security.gentoo.org/glsa/202208-30 Third Party Advisory
    Added CWE NIST CWE-787
  • CVE Modified by [email protected]

    Aug. 15, 2022

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202208-30 [No Types Assigned]
  • Modified Analysis by [email protected]

    Jul. 22, 2022

    Action Type Old Value New Value
    Changed Reference Type https://security.netapp.com/advisory/ntap-20210521-0010/ No Types Assigned https://security.netapp.com/advisory/ntap-20210521-0010/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 21, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20210521-0010/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 31, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1937784 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1937784 Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://sourceware.org/bugzilla/show_bug.cgi?id=26931 No Types Assigned https://sourceware.org/bugzilla/show_bug.cgi?id=26931 Exploit, Issue Tracking, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:gnu:binutils:2.35.1:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} -0.03%

score

0.25993

percentile