{"id":"CVE-2013-4548","aliases":["DEBIAN-CVE-2013-4548","EUVD-2013-4407","GHSA-wg6r-5vgg-89fv"],"status":"published","title":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES...","description":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.","severity":{"version":"2.0","score":6,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0267,"percentile":0.85861,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-264"],"published":"2013-11-08T15:00:00Z","modified":"2026-09-01T20:03:18Z","fixes":[{"ecosystem":"Debian:12","package":"openssh","fixed_in":["1:6.4p1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openssh","fixed_in":["1:6.4p1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openssh","fixed_in":["1:6.4p1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:6.4p1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:6.4p1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"openssh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:6.4p1-1"}]}]}],"products":[{"vendor":"openbsd","product":"openssh"}],"references":[{"url":"http://www.openssh.com/txt/gcmrekey.adv","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://openwall.com/lists/oss-security/2013/11/08/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://marc.info/?l=bugtraq\u0026m=141576985122836\u0026w=2","tags":["vendor-advisory","x_refsource_HP","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00017.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.ubuntu.com/usn/USN-2014-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-4548"},{"url":"https://github.com/advisories/GHSA-wg6r-5vgg-89fv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2013-4548","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2013-4548","description":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.","status":"published","published":"2013-11-08T15:00:00Z","modified":"2024-08-06T16:45:15.154Z","updated_at":"2026-11-02T14:34:58.193873Z"}],"euvd":[{"id":"EUVD-2013-4407","description":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.","status":"published","published":"2013-11-08T15:00:00Z","modified":"2024-08-06T16:45:15Z","updated_at":"2026-11-03T01:56:31.067159Z"}],"ghsa":[{"id":"GHSA-wg6r-5vgg-89fv","title":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES...","description":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.","status":"published","published":"2022-05-13T01:39:08Z","modified":"2023-02-02T05:00:25Z","updated_at":"2026-11-02T14:50:57.155588Z"}],"nvd":[{"id":"CVE-2013-4548","description":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.","status":"published","published":"2013-11-08T15:55:13.747Z","modified":"2026-06-16T23:57:25.917Z","cvss":[{"version":"2.0","score":6,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:40.988689Z"}],"osv":[{"id":"CVE-2013-4548","description":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.","status":"published","published":"2013-11-08T15:55:13Z","modified":"2026-04-10T03:43:00.856017Z","updated_at":"2026-11-02T15:43:59.09154Z"},{"id":"DEBIAN-CVE-2013-4548","description":"The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.","status":"published","published":"2013-11-08T15:55:13.747Z","modified":"2026-09-01T20:03:18.406358935Z","updated_at":"2026-11-02T15:45:25.514579Z"}]}}