synced 4 MIN AGO
01 Record

CVE-2011-0721

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.

UnratedPUBLISHEDCNA: canonical
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

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.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.30% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 82.8% of scored records. A rank, not a probability.
NVD base score
The NVD has published no score for this record
NVD CVSS vector
No NVD score to derive
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2011-02-18 23:00Z15 YR AGO
Last updated
2024-08-06 22:05Z2 YR AGO
Reserved
2011-02-01
Assigning CNA
canonical
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
057e70f9ab6de488e1da8444ba8079eac79840a36732d930e58cc0f9bdeb5a92

05 Affected products

VendorProductVersionsPlatforms
debianshadowNot specified—
redhatenterprise_linuxNot specified—

06 References

07 Fixed in

Debian 12

  • shadow
    Fixed in 1:4.1.4.2+svn3283-3

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • shadow
    Fixed in 1:4.1.4.2+svn3283-3

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • shadow
    Fixed in 1:4.1.4.2+svn3283-3

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.