{"id":"CVE-2011-1927","aliases":["EUVD-2011-1925","GHSA-qmg2-c98g-p46x"],"status":"published","title":"The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not...","description":"The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.","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":"2026-11-08","score":0.02561,"percentile":0.8521,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2012-06-13T10:00:00Z","modified":"2026-06-16T23:30:24Z","products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"https://github.com/torvalds/linux/commit/64f3b9e203bd06855072e295557dca1485a2ecba","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch"]},{"url":"http://www.openwall.com/lists/oss-security/2011/05/18/2","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=64f3b9e203bd06855072e295557dca1485a2ecba","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1927"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=64f3b9e203bd06855072e295557dca1485a2ecba"},{"url":"https://github.com/advisories/GHSA-qmg2-c98g-p46x"}],"sources":{"cve":[{"id":"CVE-2011-1927","description":"The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.","status":"published","published":"2012-06-13T10:00:00Z","modified":"2024-08-06T22:46:00.854Z","updated_at":"2026-11-02T14:35:38.321377Z"}],"euvd":[{"id":"EUVD-2011-1925","description":"The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.","status":"published","published":"2012-06-13T10:00:00Z","modified":"2024-08-06T22:46:00Z","updated_at":"2026-11-03T01:55:54.666744Z"}],"ghsa":[{"id":"GHSA-qmg2-c98g-p46x","title":"The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not...","description":"The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.","status":"published","published":"2022-05-17T05:28:52Z","modified":"2023-02-13T03:31:00Z","updated_at":"2026-11-02T14:54:05.992759Z"}],"nvd":[{"id":"CVE-2011-1927","description":"The ip_expire function in net/ipv4/ip_fragment.c in the Linux kernel before 2.6.39 does not properly construct ICMP_TIME_EXCEEDED packets after a timeout, which allows remote attackers to cause a denial of service (invalid pointer dereference) via crafted fragmented packets.","status":"published","published":"2012-06-13T10:24:54.343Z","modified":"2026-06-16T23:30:24.49Z","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":"2026-11-02T14:02:12.272092Z"}]}}