{"id":"CVE-1999-0656","aliases":["AZL-34842","AZL-6511","EUVD-1999-0639","GHSA-75cj-jpmc-wm6c"],"status":"published","title":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by...","description":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01551,"percentile":0.75274,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-16"],"published":"1999-01-01T05:00:00Z","modified":"2026-11-05T05:40:51Z","fixes":[{"ecosystem":"Azure Linux:3","package":"kernel","fixed_in":["6.6.35.1-4"],"sources":["osv"]},{"ecosystem":"Azure Linux:2","package":"kernel","fixed_in":["5.10.78.1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.35.1-4"}]}]},{"source":"osv","ecosystem":"Azure Linux:2","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.78.1-1"}]}]}],"products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/348","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://ca.com/au/securityadvisor/vulninfo/Vuln.aspx?ID=1638","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-1999-0656","tags":["web"]},{"url":"https://github.com/advisories/GHSA-75cj-jpmc-wm6c"}],"sources":{"cve":[{"id":"CVE-1999-0656","description":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.","status":"published","published":"2000-02-04T05:00:00Z","modified":"2024-08-01T16:48:37.159Z","updated_at":"2026-11-02T14:33:53.60785Z"}],"euvd":[{"id":"EUVD-1999-0639","description":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.","status":"published","published":"2000-02-04T05:00:00Z","modified":"2024-08-01T16:48:37Z","updated_at":"2026-11-03T03:50:46.021315Z"}],"ghsa":[{"id":"GHSA-75cj-jpmc-wm6c","title":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by...","description":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.","status":"published","published":"2022-04-30T18:10:56Z","modified":"2023-01-30T05:04:21Z","updated_at":"2026-11-02T14:47:01.801326Z"}],"nvd":[{"id":"CVE-1999-0656","description":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.","status":"published","published":"1999-01-01T05:00:00Z","modified":"2026-06-16T21:48:47.46Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-16"],"updated_at":"2026-11-02T13:58:30.236077Z"}],"osv":[{"id":"AZL-34842","title":"CVE-1999-0656 affecting package kernel for versions less than 6.6.35.1-4","description":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.","status":"published","published":"1999-01-01T05:00:00Z","modified":"2026-11-05T05:40:51Z","updated_at":"2026-11-05T16:41:19.380321Z"},{"id":"AZL-6511","title":"CVE-1999-0656 affecting package kernel for versions less than 5.10.78.1-1","description":"The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.","status":"published","published":"1999-01-01T05:00:00Z","modified":"2026-04-21T04:37:30.601296Z","updated_at":"2026-11-02T15:28:08.076947Z"}]}}