CVE-2021-3504

Advisory lineage Upstream: 0 Downstream: 14
Modified
Published: 11 May 2021, 22:30
Last modified:03 Aug 2024, 16:53

Vulnerability Summary

Overall Risk (default)
low
23/100
CVSS Score
5.8 MEDIUM
v2.0 (nvd)
EPSS Score
0.16% LOW
0% probability +0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

11 May 2021, 22:30
Published
Vulnerability first disclosed
03 Aug 2024, 16:53
Last Modified
Vulnerability information updated

Description

A flaw was found in the hivex library in versions before 1.3.20. It is caused due to a lack of bounds check within the hivex_open function. An attacker could input a specially crafted Windows Registry (hive) file which would cause hivex to read memory beyond its normal bounds or cause the program to crash. The highest threat from this vulnerability is to system availability.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
  • v2.0•MEDIUM•Score: 5.8AV:N/AC:M/Au:N/C:P/I:N/A:P

EPSS Trends

Current EPSS score: 0.16%• Percentile: 37%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•debian_linux

    9.0

  • fedoraproject•fedora

    34

  • redhat•enterprise_linux

    6.0 | 7.0 | 8.0

  • redhat•hivex

    < 1.3.20

References (4)