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CVE-2021-40491

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

6.5

Related Resources (8)

Url: https://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=58cb043b190fd04effdaea7c9403416b436e50dd

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-40491

Url: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=993476

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-40491

Url: https://lists.debian.org/debian-lts-announce/2022/11/msg00033.html

Url: https://lists.gnu.org/archive/html/bug-inetutils/2021-06/msg00002.html

Url: https://security-tracker.debian.org/tracker/CVE-2021-40491

Url: https://www.mend.io/vulnerability-database/CVE-2021-40491

Severity Score

6.5

Weakness Type (CWE)

Insufficient Verification of Data Authenticity

CWE-345

CVSS v3.1

Base Score:	6.5
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:	4.3
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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