CVE-2021-23192

Description

A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory gentoo.org Vendor Advisory samba.org
Affected: n/a samba
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2019666 third party advisory issue tracking
https://www.samba.org/samba/security/CVE-2021-23192.html patch vendor advisory
https://ubuntu.com/security/CVE-2021-23192 third party advisory
https://security.gentoo.org/glsa/202309-06 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-23192?
CVE-2021-23192 has been scored as a high severity vulnerability.
How to fix CVE-2021-23192?
To fix CVE-2021-23192, 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-2021-23192 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-23192 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-2021-23192?
CVE-2021-23192 affects n/a samba.
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