Out-of-Bounds Read in GNU Tar for OpenEuler
CVE-2021-33644

8.1HIGH

Key Information:

Vendor

Feep

Status
Vendor
CVE Published:
10 August 2022

Badges

๐Ÿ‘พ Exploit Exists๐ŸŸก Public PoC

What is CVE-2021-33644?

A vulnerability in GNU Tar allows attackers to exploit crafted tar files. By manipulating the header size to zero, this flaw can lead to an out-of-bounds read, potentially impacting the stability and security of the system. This issue affects multiple versions of the GNU Tar software and requires immediate attention from users of OpenEuler to mitigate associated risks.

Affected Version(s)

libtar <1.2.21

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • ๐ŸŸก

    Public PoC available

  • ๐Ÿ‘พ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.