Search criteria
11 vulnerabilities found for InetUtils by gnu
CVE-2026-24061 (GCVE-0-2026-24061)
Vulnerability from nvd – Published: 2026-01-21 06:42 – Updated: 2026-01-21 07:03
VLAI?
Summary
telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.
Severity ?
9.8 (Critical)
CWE
- CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Assigner
References
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CVE-2023-40303 (GCVE-0-2023-40303)
Vulnerability from nvd – Published: 2023-08-14 00:00 – Updated: 2024-08-02 18:31
VLAI?
Summary
GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd. This is, for example, relevant if the setuid system call fails when a process is trying to drop privileges before letting an ordinary user control the activities of the process.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2022-39028 (GCVE-0-2022-39028)
Vulnerability from nvd – Published: 2022-08-30 00:00 – Updated: 2024-08-03 11:10
VLAI?
Summary
telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a "telnet/tcp server failing (looping), service terminated" error. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2021-40491 (GCVE-0-2021-40491)
Vulnerability from nvd – Published: 2021-09-03 00:00 – Updated: 2024-08-04 02:44
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2011-4862 (GCVE-0-2011-4862)
Vulnerability from nvd – Published: 2011-12-25 01:00 – Updated: 2024-08-07 00:16
VLAI?
Summary
Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2026-24061 (GCVE-0-2026-24061)
Vulnerability from cvelistv5 – Published: 2026-01-21 06:42 – Updated: 2026-01-21 07:03
VLAI?
Summary
telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.
Severity ?
9.8 (Critical)
CWE
- CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Assigner
References
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CVE-2023-40303 (GCVE-0-2023-40303)
Vulnerability from cvelistv5 – Published: 2023-08-14 00:00 – Updated: 2024-08-02 18:31
VLAI?
Summary
GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd. This is, for example, relevant if the setuid system call fails when a process is trying to drop privileges before letting an ordinary user control the activities of the process.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2022-39028 (GCVE-0-2022-39028)
Vulnerability from cvelistv5 – Published: 2022-08-30 00:00 – Updated: 2024-08-03 11:10
VLAI?
Summary
telnetd in GNU Inetutils through 2.3, MIT krb5-appl through 1.0.3, and derivative works has a NULL pointer dereference via 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a "telnet/tcp server failing (looping), service terminated" error. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2021-40491 (GCVE-0-2021-40491)
Vulnerability from cvelistv5 – Published: 2021-09-03 00:00 – Updated: 2024-08-04 02:44
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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CVE-2011-4862 (GCVE-0-2011-4862)
Vulnerability from cvelistv5 – Published: 2011-12-25 01:00 – Updated: 2024-08-07 00:16
VLAI?
Summary
Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other products allows remote attackers to execute arbitrary code via a long encryption key, as exploited in the wild in December 2011.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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"url": "http://www.redhat.com/support/errata/RHSA-2011-1851.html"
},
{
"name": "18280",
"refsource": "EXPLOIT-DB",
"url": "http://www.exploit-db.com/exploits/18280/"
},
{
"name": "47348",
"refsource": "SECUNIA",
"url": "http://secunia.com/advisories/47348"
},
{
"name": "1026460",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id?1026460"
},
{
"name": "DSA-2373",
"refsource": "DEBIAN",
"url": "http://www.debian.org/security/2011/dsa-2373"
},
{
"name": "multiple-telnetd-bo(71970)",
"refsource": "XF",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/71970"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
"assignerShortName": "freebsd",
"cveId": "CVE-2011-4862",
"datePublished": "2011-12-25T01:00:00",
"dateReserved": "2011-12-19T00:00:00",
"dateUpdated": "2024-08-07T00:16:35.035Z",
"state": "PUBLISHED"
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GCVE-1-2026-0007
Vulnerability from gna-1 – Published: 2026-01-20 20:57 – Updated: 2026-01-20 20:57
VLAI?
Title
GNU InetUtils Security Advisory: remote authentication by-pass in telnetd
Summary
The telnetd server invokes /usr/bin/login (normally running as root)
passing the value of the USER environment variable received from the
client as the last parameter.
If the client supply a carefully crafted USER environment value being
the string "-f root", and passes the telnet(1) -a or --login parameter
to send this USER environment to the server, the client will be
automatically logged in as root bypassing normal authentication
processes.
This happens because the telnetd server do not sanitize the USER
environment variable before passing it on to login(1), and login(1)
uses the -f parameter to by-pass normal authentication.
Severity: High
Vulnerable versions: GNU InetUtils since version 1.9.3 up to and
including version 2.7.
Severity ?
CWE
- CWE-20 - Improper Input Validation
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Credits
Kyu Neushwaistein aka Carlos Cortes Alvarez
Simon Josefsson
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"url": "https://codeberg.org/inetutils/inetutils/commit/fa3245ac8c288b87139a0da8249d0a408c4dfb87"
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