CVE-2021-3504

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a hivex
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1949687 patch third party advisory issue tracking
https://lists.debian.org/debian-lts-announce/2021/05/msg00011.html third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5BNKNVYFL36P2GBEB5O36LHFRYU575H/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQXTEACRWYAZVNEOIWIYUFGG4GOXSQ22/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3504?
CVE-2021-3504 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3504?
To fix CVE-2021-3504, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3504 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3504 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3504?
CVE-2021-3504 affects n/a hivex.
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