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CVE-2021-40491

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Date: September 2, 2021

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.

Language: C

Severity Score

Related Resources (8)

https://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=58cb043b190fd04effdaea7c9403416b436e50dd
https://nvd.nist.gov/vuln/detail/CVE-2021-40491
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-40491
https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html
https://lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html
https://security-tracker.debian.org/tracker/CVE-2021-40491
https://www.mend.io/vulnerability-database/CVE-2021-40491

Severity Score

Weakness Type (CWE)

Insufficient Verification of Data Authenticity

CWE-345

Top Fix

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Upgrade Version

Upgrade to version inetutils - 2.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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