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CVE-2011-0721

Multiple CRLF injection vulnerabilities in (1) chfn and (2) chsh in shadow 1:4.1.4 allow local...

6.4 MediumFix available

CVE-2011-0721 is a medium vulnerability (CVSS 6.4) in Debian Shadow, published February 16, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.31%, the 83rd percentile. Fixed in shadow 1:4.1.4.2+svn3283-3.

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.

Exploit likelihood

2.31%Up 0.8 points since Feb 4, 2022

What each source reports

NVD Score used 6.4

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.

Record: CVE-2011-0721
CVSS 2.0: 6.4 MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

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.

Record: CVE-2011-0721
Updated: 2026-11-02

EUVDEUVD-2011-0735 No score

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.

Record: EUVD-2011-0735
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6wqp-749m-jfw7 No score

Multiple CRLF injection vulnerabilities in (1) chfn and (2) chsh in shadow 1:4.1.4 allow local...

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.

Record: GHSA-6wqp-749m-jfw7
Weakness: CWE-20
Updated: 2026-11-02

OSV No score

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.

Record: CVE-2011-0721
Updated: 2026-11-02

OSVDEBIAN-CVE-2011-0721 No score

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.

Record: DEBIAN-CVE-2011-0721
Updated: 2026-11-02

Affected products

debian shadow

Affected packages

Affected packages
Package	Affected	Fixed
`shadow` Debian:12	before 1:4.1.4.2+svn3283-3	1:4.1.4.2+svn3283-3
`shadow` Debian:13	before 1:4.1.4.2+svn3283-3	1:4.1.4.2+svn3283-3
`shadow` Debian:14	before 1:4.1.4.2+svn3283-3	1:4.1.4.2+svn3283-3
`shadow` Debian:6.0	before 1:4.1.4.2+svn3283-2+squeeze1, plus listed versions 1:4.1.4.2+svn3283-2	1:4.1.4.2+svn3283-2+squeeze1

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

References

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