Medium severity · published Sep 3, 2021
CVE-2021-40491
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
6.5
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
IN
Inetutils · Gnu
before 2.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40491
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40491
Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476
Patch
https://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=58cb043b190fd04effdaea7c9403416b436e50dd
Mailing List
https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html
Mailing List
https://lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html
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