CVE-2021-3504
hivex - security update
5.4
MEDIUM
CVSS 3.1
EPSS 1.9%
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.
How to fix CVE-2021-3504
To remediate CVE-2021-3504, upgrade the affected package to a fixed version below.
- —upgrade to 1.3.20-1 or later
- —upgrade to 1.3.13-2+deb9u1 or later
- —upgrade to 1.3.18-1+deb10u1 or later
Is CVE-2021-3504 being exploited?
Low — EPSS is 1.9%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.3.20-1
- from 0, < 1.3.13-2+deb9u1
- from 0, < 1.3.18-1+deb10u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L |