{"id":"CVE-2011-1925","aliases":["DEBIAN-CVE-2011-1925","EUVD-2011-1923","GHSA-4c65-9qmh-v9h5"],"status":"published","title":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a...","description":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02524,"percentile":0.84964,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2011-05-31T20:00:00Z","modified":"2026-10-23T17:47:49Z","fixes":[{"ecosystem":"Debian:12","package":"nbd","fixed_in":["1:2.9.22-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"nbd","fixed_in":["1:2.9.22-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"nbd","fixed_in":["1:2.9.22-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"nbd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.9.22-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"nbd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.9.22-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"nbd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.9.22-1"}]}]}],"products":[{"vendor":"wouter_verhelst","product":"nbd"}],"references":[{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627042.","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"http://security.gentoo.org/glsa/glsa-201206-35.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"http://nbd.git.sourceforge.net/git/gitweb.cgi?p=nbd/nbd%3Ba=commitdiff%3Bh=ebbbe0b3ce5393fa42a259f5e03d549508586aaa","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.openwall.com/lists/oss-security/2011/05/17/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/67502","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/47884","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1925"},{"url":"http://nbd.git.sourceforge.net/git/gitweb.cgi?p=nbd/nbd;a=commitdiff;h=ebbbe0b3ce5393fa42a259f5e03d549508586aaa"},{"url":"https://github.com/advisories/GHSA-4c65-9qmh-v9h5"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-1925","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-1925","description":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.","status":"published","published":"2011-05-31T20:00:00Z","modified":"2024-08-06T22:46:00.646Z","updated_at":"2026-11-02T14:35:38.711857Z"}],"euvd":[{"id":"EUVD-2011-1923","description":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.","status":"published","published":"2011-05-31T20:00:00Z","modified":"2024-08-06T22:46:00Z","updated_at":"2026-11-03T01:55:54.666744Z"}],"ghsa":[{"id":"GHSA-4c65-9qmh-v9h5","title":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a...","description":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.","status":"published","published":"2022-05-17T01:59:31Z","modified":"2025-04-11T03:47:30Z","updated_at":"2026-11-02T15:01:08.227504Z"}],"nvd":[{"id":"CVE-2011-1925","description":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.","status":"published","published":"2011-05-31T20:55:04.127Z","modified":"2026-06-16T23:30:24.23Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:08.47516Z"}],"osv":[{"id":"CVE-2011-1925","description":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.","status":"published","published":"2011-05-31T20:55:04Z","modified":"2026-04-10T03:41:49.316028Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-1925","description":"nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.","status":"published","published":"2011-05-31T20:55:04.127Z","modified":"2026-10-23T17:47:49.544520688Z","updated_at":"2026-11-02T15:45:24.612044Z"}]}}