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.
Published 2021-05-11 23:15:09
Updated 2021-06-21 18:35:41
Source Red Hat, Inc.
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-3504

0.16%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-3504

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:P
8.6
4.9
NIST
5.4
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
2.8
2.5
NIST

CWE ids for CVE-2021-3504

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: secalert@redhat.com (Primary)

References for CVE-2021-3504

Products affected by CVE-2021-3504

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