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    CVE-2011-4862

    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.

    Published:Dec 25, 2011
    Last Modified:Apr 11, 2025
    EPS:Dec 25, 2011
    EPSS Score:0.92409
    CVSS Score:10

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Freebsd
    Product
    Freebsd
    Vendor
    Gnu
    Product
    Inetutils
    Vendor
    Heimdal Project
    Product
    Heimdal
    Vendor
    Mit
    Product
    Krb5-appl
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Els
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Mission Critical
    Vendor
    Suse
    Product
    Linux Enterprise Desktop
    Vendor
    Suse
    Product
    Linux Enterprise Server
    Vendor
    Suse
    Product
    Linux Enterprise Software Development Kit

    Exploits

    http://www.exploit-db.com/exploits/18280/http://www.exploit-db.com/exploits/18280/https://www.exploit-db.com/exploits/18369https://github.com/appsecrani/CVE-2011-4862https://github.com/hdbreaker/GO-CVE-2011-4862https://github.com/kpawar2410/CVE-2011-4862https://github.com/lol-fi/cve-2011-4862https://www.exploit-db.com/exploits/18280https://www.exploit-db.com/exploits/18368

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    References

    http://archives.neohapsis.com/archives/bugtraq/2011-12/0172.html
    http://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=665f1e73cdd9b38e2d2e11b8db9958a315935592
    http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071627.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071640.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006117.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006118.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006119.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006120.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00007.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00011.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00015.html
    http://osvdb.org/78020
    http://secunia.com/advisories/46239
    http://secunia.com/advisories/47341
    http://secunia.com/advisories/47348
    http://secunia.com/advisories/47357
    http://secunia.com/advisories/47359
    http://secunia.com/advisories/47373
    http://secunia.com/advisories/47374
    http://secunia.com/advisories/47397
    http://secunia.com/advisories/47399
    http://secunia.com/advisories/47441
    http://security.freebsd.org/advisories/FreeBSD-SA-11:08.telnetd.asc
    http://security.freebsd.org/patches/SA-11:08/telnetd.patch
    http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2011-008.txt
    http://www.debian.org/security/2011/dsa-2372
    http://www.debian.org/security/2011/dsa-2373
    http://www.debian.org/security/2011/dsa-2375
    http://www.exploit-db.com/exploits/18280/
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:195
    http://www.redhat.com/support/errata/RHSA-2011-1851.html
    http://www.redhat.com/support/errata/RHSA-2011-1852.html
    http://www.redhat.com/support/errata/RHSA-2011-1853.html
    http://www.redhat.com/support/errata/RHSA-2011-1854.html
    http://www.securitytracker.com/id?1026460
    http://www.securitytracker.com/id?1026463
    https://exchange.xforce.ibmcloud.com/vulnerabilities/71970
    http://archives.neohapsis.com/archives/bugtraq/2011-12/0172.html
    http://git.savannah.gnu.org/cgit/inetutils.git/commit/?id=665f1e73cdd9b38e2d2e11b8db9958a315935592
    http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071627.html
    http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071640.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006117.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006118.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006119.html
    http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006120.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00004.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00007.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00011.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00014.html
    http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00015.html
    http://osvdb.org/78020
    http://secunia.com/advisories/46239
    http://secunia.com/advisories/47341
    http://secunia.com/advisories/47348
    http://secunia.com/advisories/47357
    http://secunia.com/advisories/47359
    http://secunia.com/advisories/47373
    http://secunia.com/advisories/47374
    http://secunia.com/advisories/47397
    http://secunia.com/advisories/47399
    http://secunia.com/advisories/47441
    http://security.freebsd.org/advisories/FreeBSD-SA-11:08.telnetd.asc
    http://security.freebsd.org/patches/SA-11:08/telnetd.patch
    http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2011-008.txt
    http://www.debian.org/security/2011/dsa-2372
    http://www.debian.org/security/2011/dsa-2373
    http://www.debian.org/security/2011/dsa-2375
    http://www.exploit-db.com/exploits/18280/
    http://www.mandriva.com/security/advisories?name=MDVSA-2011:195
    http://www.redhat.com/support/errata/RHSA-2011-1851.html
    http://www.redhat.com/support/errata/RHSA-2011-1852.html
    http://www.redhat.com/support/errata/RHSA-2011-1853.html
    http://www.redhat.com/support/errata/RHSA-2011-1854.html
    http://www.securitytracker.com/id?1026460
    http://www.securitytracker.com/id?1026463
    https://exchange.xforce.ibmcloud.com/vulnerabilities/71970

    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