CVE-2021-3504 — Out-of-bounds Read in Redhat Hivex
Severity
5.4MEDIUMNVD
EPSS
0.1%
top 64.46%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 11
Latest updateMay 24
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:LExploitability: 2.8 | Impact: 2.5
Affected Packages3 packages
Also affects: Debian Linux 9.0, Fedora 34, Enterprise Linux 6.0, 7.0, 8.0
Patches
🔴Vulnerability Details
3📋Vendor Advisories
5Microsoft▶
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↗2021-05-11
Debian▶
CVE-2021-3504: hivex - A flaw was found in the hivex library in versions before 1.3.20. It is caused du...↗2021