CVE-2021-3421

Description

A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package or compromise an RPM repository, to cause RPM database corruption. The highest threat from this vulnerability is to data integrity. This flaw affects RPM versions before 4.17.0-alpha.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org
Affected: n/a rpm
Published at:
Updated at:

References

Link Tags
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YILPBTPSBRYL4POBI3F4YUSVPSOQNJBY/ vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1927747 patch third party advisory issue tracking
https://security.gentoo.org/glsa/202107-43 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3421?
CVE-2021-3421 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3421?
To fix CVE-2021-3421, 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-2021-3421 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3421 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-2021-3421?
CVE-2021-3421 affects n/a rpm.
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