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    CVE-2005-0468

    Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.

    Published:Mar 28, 2005
    Last Modified:Apr 16, 2026
    EPS:Mar 28, 2005
    EPSS Score:0.58537
    CVSS Score:7.5

    Affected Products

    Vendor
    Ncsa
    Product
    Telnet
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://www.exploit-db.com/exploits/25303

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    References

    ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:01.telnet.asc
    ftp://patches.sgi.com/support/free/security/advisories/20050405-01-P
    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000962
    http://secunia.com/advisories/14745
    http://secunia.com/advisories/17899
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-101665-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-101671-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-57755-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-57761-1
    http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2005-001-telnet.txt
    http://www.debian.de/security/2005/dsa-731
    http://www.debian.org/security/2005/dsa-703
    http://www.idefense.com/application/poi/display?id=221&type=vulnerabilities
    http://www.kb.cert.org/vuls/id/341908
    http://www.mandriva.com/security/advisories?name=MDKSA-2005:061
    http://www.redhat.com/support/errata/RHSA-2005-327.html
    http://www.redhat.com/support/errata/RHSA-2005-330.html
    http://www.securityfocus.com/bid/12919
    http://www.ubuntulinux.org/usn/usn-224-1
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9640
    ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:01.telnet.asc
    ftp://patches.sgi.com/support/free/security/advisories/20050405-01-P
    http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000962
    http://secunia.com/advisories/14745
    http://secunia.com/advisories/17899
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-101665-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-101671-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-57755-1
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-57761-1
    http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2005-001-telnet.txt
    http://www.debian.de/security/2005/dsa-731
    http://www.debian.org/security/2005/dsa-703
    http://www.idefense.com/application/poi/display?id=221&type=vulnerabilities
    http://www.kb.cert.org/vuls/id/341908
    http://www.mandriva.com/security/advisories?name=MDKSA-2005:061
    http://www.redhat.com/support/errata/RHSA-2005-327.html
    http://www.redhat.com/support/errata/RHSA-2005-330.html
    http://www.securityfocus.com/bid/12919
    http://www.ubuntulinux.org/usn/usn-224-1
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9640

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High