What is the severity of CVE-2011-0721?

CVE-2011-0721 is categorized as a medium severity vulnerability due to its potential exploitation by local users.

How do I fix CVE-2011-0721?

To fix CVE-2011-0721, update the shadow package to a version that addresses the CRLF injection vulnerabilities.

Who is affected by CVE-2011-0721?

Local users on systems running shadow version 1:4.1.4 are affected by CVE-2011-0721.

What types of attacks can CVE-2011-0721 facilitate?

CVE-2011-0721 can facilitate attacks that allow local users to manipulate the /etc/passwd file by exploiting CRLF injection.

Is CVE-2011-0721 a remote vulnerability?

No, CVE-2011-0721 is not a remote vulnerability; it requires local access to exploit.

Vulnerability/
CVE-2011-0721

medium

6.4

CWE

20 93

18/2/2011

6/8/2024

CVE-2011-0721: Input Validation

First published: Fri Feb 18 2011(Updated: )

Multiple CRLF injection vulnerabilities in (1) chfn and (2) chsh in shadow 1:4.1.4 allow local users to add new users or groups to /etc/passwd via the GECOS field.

Credit: security@ubuntu.com

Affected Software	Affected Version	How to fix
Shadow-utils	=1\-4.1.4

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2011-0721?
CVE-2011-0721 is categorized as a medium severity vulnerability due to its potential exploitation by local users.
How do I fix CVE-2011-0721?
To fix CVE-2011-0721, update the shadow package to a version that addresses the CRLF injection vulnerabilities.
Who is affected by CVE-2011-0721?
Local users on systems running shadow version 1:4.1.4 are affected by CVE-2011-0721.
What types of attacks can CVE-2011-0721 facilitate?
CVE-2011-0721 can facilitate attacks that allow local users to manipulate the /etc/passwd file by exploiting CRLF injection.
Is CVE-2011-0721 a remote vulnerability?
No, CVE-2011-0721 is not a remote vulnerability; it requires local access to exploit.

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