{"id":"CVE-2011-1076","aliases":["EUVD-2011-1091","GHSA-7x34-477r-7v7v"],"status":"published","title":"net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a...","description":"net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereference and OOPS) by not providing a valid response to a DNS query, as demonstrated by an erroneous grand.centrall.org query, which triggers improper handling of error data within a DNS resolver key.","severity":{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00516,"percentile":0.44149,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2011-10-05T01:00:00Z","modified":"2026-06-16T23:28:39Z","products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1362fa078dae16776cd439791c6605b224ea6171","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://openwall.com/lists/oss-security/2011/03/04/13","tags":["mailing-list","x_refsource_MLIST","x_transferred","Exploit","Mailing List","Patch","Third Party Advisory"]},{"url":"http://securitytracker.com/id?1025162","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38","tags":["x_refsource_CONFIRM","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1076"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1362fa078dae16776cd439791c6605b224ea6171"},{"url":"https://github.com/advisories/GHSA-7x34-477r-7v7v"}],"sources":{"cve":[{"id":"CVE-2011-1076","description":"net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereference and OOPS) by not providing a valid response to a DNS query, as demonstrated by an erroneous grand.centrall.org query, which triggers improper handling of error data within a DNS resolver key.","status":"published","published":"2011-10-05T01:00:00Z","modified":"2024-08-06T22:14:27.772Z","updated_at":"2026-11-02T14:35:38.711857Z"}],"euvd":[{"id":"EUVD-2011-1091","description":"net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereference and OOPS) by not providing a valid response to a DNS query, as demonstrated by an erroneous grand.centrall.org query, which triggers improper handling of error data within a DNS resolver key.","status":"published","published":"2011-10-05T01:00:00Z","modified":"2024-08-06T22:14:27Z","updated_at":"2026-11-03T01:55:58.301107Z"}],"ghsa":[{"id":"GHSA-7x34-477r-7v7v","title":"net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a...","description":"net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereference and OOPS) by not providing a valid response to a DNS query, as demonstrated by an erroneous grand.centrall.org query, which triggers improper handling of error data within a DNS resolver key.","status":"published","published":"2022-05-13T01:24:43Z","modified":"2023-02-13T03:31:05Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:54:05.992759Z"}],"nvd":[{"id":"CVE-2011-1076","description":"net/dns_resolver/dns_key.c in the Linux kernel before 2.6.38 allows remote DNS servers to cause a denial of service (NULL pointer dereference and OOPS) by not providing a valid response to a DNS query, as demonstrated by an erroneous grand.centrall.org query, which triggers improper handling of error data within a DNS resolver key.","status":"published","published":"2011-10-05T02:56:24.627Z","modified":"2026-06-16T23:28:39.88Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:02:10.769216Z"}]}}