{"id":"MGASA-2015-0221","summary":"Updated kernel-linus packages fix security vulnerabilities","details":"This kernel update is based on upstream -longterm 3.14.41 and fixes\nthe following security issues:\n\nnet/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before\n3.18 generates incorrect conntrack entries during handling of certain\niptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols,\nwhich allows remote attackers to bypass intended access restrictions\nvia packets with disallowed port numbers (CVE-2014-8160).\n\nThe em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel\nbefore 3.18.5, when the guest OS lacks SYSENTER MSR initialization,\nallows guest OS users to gain guest OS privileges or cause a denial of\nservice (guest OS crash) by triggering use of a 16-bit code segment for\nemulation of a SYSENTER instruction (CVE-2015-0239).\n\nIt was found that the Linux kernel's ping socket implementation didn't\nproperly handle socket unhashing during spurious disconnects which could\nlead to use-after-free flaw. On x86-64 architecture systems, a local user\nable to create ping sockets could use this flaw to crash the system. On\nnon-x86-64 architecture systems, a local user able to create ping sockets\ncould use this flaw to increase their privileges on the system.\nNote: By default ping sockets are disabled on the system \n(net.ipv4.ping_group_range = 1  0) and have to be explicitly enabled by the\nsystem administrator for specific user groups in order to exploit this issue\n(CVE-2015-3636).\n\nFor other fixes in this update, see the referenced changelogs.\n","modified":"2026-04-16T01:48:06.816716089Z","published":"2015-05-13T17:18:54Z","upstream":["CVE-2014-8160","CVE-2015-0239","CVE-2015-3636"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2015-0221.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=15873"},{"type":"WEB","url":"https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.40"},{"type":"WEB","url":"https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.41"}],"affected":[{"package":{"name":"kernel-linus","ecosystem":"Mageia:4","purl":"pkg:rpm/mageia/kernel-linus?arch=source&distro=mageia-4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.14.41-1.mga4"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2015-0221.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}