// For flags

CVE-2021-20294

Gentoo Linux Security Advisory 202208-30

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A flaw was found in binutils readelf 2.35 program. An attacker who is able to convince a victim using readelf to read a crafted file could trigger a stack buffer overflow, out-of-bounds write of arbitrary data supplied by the attacker. The highest impact of this flaw is to confidentiality, integrity, and availability.

Se encontró un fallo en el programa binutils readelf versión 2.35. Un atacante que sea capaz de convencer a una víctima usando readelf para que lea un archivo diseñado podría desencadenar un desbordamiento de búfer de la pila, una escritura fuera de límites de los datos arbitrarios proporcionados por el atacante. El mayor impacto de este fallo es la confidencialidad, integridad y disponibilidad

Multiple vulnerabilities have been discovered in Binutils, the worst of which could result in denial of service. Versions less than 2.38 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-17 CVE Reserved
  • 2021-04-29 CVE Published
  • 2023-01-21 First Exploit
  • 2024-08-03 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Gnu
Search vendor "Gnu"
 Binutils
Search vendor "Gnu" for product "Binutils"
 >= 2.35 < 2.35.2
Search vendor "Gnu" for product "Binutils" and version " >= 2.35 < 2.35.2"
-
Affected