CVE-2021-40491

Description

The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.22%
Vendor Advisory gnu.org Vendor Advisory gnu.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476 third party advisory
https://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=58cb043b190fd04effdaea7c9403416b436e50dd patch vendor advisory
https://lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html vendor advisory mailing list
https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-40491?
CVE-2021-40491 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40491?
To fix CVE-2021-40491, 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-2021-40491 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-40491 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.
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