{"id":"CVE-2011-5000","aliases":["DEBIAN-CVE-2011-5000","EUVD-2011-4905","GHSA-wq52-9gh8-cwrp","RHSA-2012:0884"],"status":"published","title":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with...","description":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.  NOTE: there may be limited scenarios in which this issue is relevant.","severity":{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:N/A:P","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02565,"percentile":0.85231,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2012-04-04T10:00:00Z","modified":"2026-10-23T17:47:26Z","fixes":[{"ecosystem":"Debian:12","package":"openssh","fixed_in":["1:5.9p1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openssh","fixed_in":["1:5.9p1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openssh","fixed_in":["1:5.9p1-1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-debuginfo","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-ldap","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"pam_ssh_agent_auth","fixed_in":["0:0.9-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-askpass","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-clients","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-server","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-askpass","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-debuginfo","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-ldap","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"pam_ssh_agent_auth","fixed_in":["0:0.9-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-clients","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-server","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-debuginfo","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-ldap","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"pam_ssh_agent_auth","fixed_in":["0:0.9-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-askpass","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-clients","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-server","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-debuginfo","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-ldap","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"pam_ssh_agent_auth","fixed_in":["0:0.9-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-askpass","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-clients","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-server","fixed_in":["0:5.3p1-81.el6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.9p1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.9p1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.9p1-1"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-ldap","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"pam_ssh_agent_auth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-askpass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-clients","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"openssh-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-askpass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-ldap","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"pam_ssh_agent_auth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-clients","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"openssh-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-ldap","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"pam_ssh_agent_auth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-askpass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-clients","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"openssh-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-ldap","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"pam_ssh_agent_auth","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-askpass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-clients","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"openssh-server","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.3p1-81.el6"}]}]}],"products":[{"vendor":"openbsd","product":"openssh"}],"references":[{"url":"http://seclists.org/fulldisclosure/2011/Aug/2","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Exploit","evidence"]},{"url":"http://rhn.redhat.com/errata/RHSA-2012-0884.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","advisory"]},{"url":"http://site.pi3.com.pl/adv/ssh_1.txt","tags":["x_refsource_MISC","x_transferred","Exploit","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-5000","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wq52-9gh8-cwrp"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-5000","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2012:0884","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#low","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=657378","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=732955","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=797384","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=809938","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_0884.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2011-5000","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-5000","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-5000","description":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.  NOTE: there may be limited scenarios in which this issue is relevant.","status":"published","published":"2012-04-04T10:00:00Z","modified":"2024-08-07T00:23:39.092Z","updated_at":"2026-11-02T14:35:36.252742Z"}],"euvd":[{"id":"EUVD-2011-4905","description":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.  NOTE: there may be limited scenarios in which this issue is relevant.","status":"published","published":"2012-04-04T10:00:00Z","modified":"2024-08-07T00:23:39Z","updated_at":"2026-11-03T01:39:47.649601Z"}],"ghsa":[{"id":"GHSA-wq52-9gh8-cwrp","title":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with...","description":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.  NOTE: there may be limited scenarios in which this issue is relevant.","status":"published","published":"2022-05-17T05:27:39Z","modified":"2023-01-28T05:03:51Z","updated_at":"2026-11-02T14:44:03.582616Z"}],"nvd":[{"id":"CVE-2011-5000","description":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.  NOTE: there may be limited scenarios in which this issue is relevant.","status":"published","published":"2012-04-05T14:55:03.59Z","modified":"2026-06-16T23:35:45.47Z","cvss":[{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:02:12.272092Z"}],"osv":[{"id":"CVE-2011-5000","description":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.  NOTE: there may be limited scenarios in which this issue is relevant.","status":"published","published":"2012-04-05T14:55:03Z","modified":"2026-04-10T03:42:08.384965Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-5000","description":"The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field.  NOTE: there may be limited scenarios in which this issue is relevant.","status":"published","published":"2012-04-05T14:55:03.59Z","modified":"2026-10-23T17:47:26.353184907Z","updated_at":"2026-11-02T15:45:24.92418Z"},{"id":"RHSA-2012:0884","title":"Red Hat Security Advisory: openssh security, bug fix, and enhancement update","status":"published","published":"2024-09-15T19:46:23Z","modified":"2026-06-26T12:20:50.815104519Z","updated_at":"2026-11-02T15:53:01.495018Z"}]}}