{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"LOW" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: fix kernel-infoleak for SCTP sockets\n\nsyzbot reported a kernel infoleak [1] of 4 bytes.\n\nAfter analysis, it turned out r->idiag_expires is not initialized\nif inet_sctp_diag_fill() calls inet_diag_msg_common_fill()\n\nMake sure to clear idiag_timer/idiag_retrans/idiag_expires\nand let inet_diag_msg_sctpasoc_fill() fill them again if needed.\n\n[1]\n\nBUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline]\nBUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:154 [inline]\nBUG: KMSAN: kernel-infoleak in _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668\n instrument_copy_to_user include/linux/instrumented.h:121 [inline]\n copyout lib/iov_iter.c:154 [inline]\n _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668\n copy_to_iter include/linux/uio.h:162 [inline]\n simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519\n __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425\n skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533\n skb_copy_datagram_msg include/linux/skbuff.h:3696 [inline]\n netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977\n sock_recvmsg_nosec net/socket.c:948 [inline]\n sock_recvmsg net/socket.c:966 [inline]\n __sys_recvfrom+0x795/0xa10 net/socket.c:2097\n __do_sys_recvfrom net/socket.c:2115 [inline]\n __se_sys_recvfrom net/socket.c:2111 [inline]\n __x64_sys_recvfrom+0x19d/0x210 net/socket.c:2111\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nUninit was created at:\n slab_post_alloc_hook mm/slab.h:737 [inline]\n slab_alloc_node mm/slub.c:3247 [inline]\n __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975\n kmalloc_reserve net/core/skbuff.c:354 [inline]\n __alloc_skb+0x545/0xf90 net/core/skbuff.c:426\n alloc_skb include/linux/skbuff.h:1158 [inline]\n netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248\n __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373\n netlink_dump_start include/linux/netlink.h:254 [inline]\n inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341\n sock_diag_rcv_msg+0x24a/0x620\n netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494\n sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:277\n netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]\n netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343\n netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919\n sock_sendmsg_nosec net/socket.c:705 [inline]\n sock_sendmsg net/socket.c:725 [inline]\n sock_write_iter+0x594/0x690 net/socket.c:1061\n do_iter_readv_writev+0xa7f/0xc70\n do_iter_write+0x52c/0x1500 fs/read_write.c:851\n vfs_writev fs/read_write.c:924 [inline]\n do_writev+0x645/0xe00 fs/read_write.c:967\n __do_sys_writev fs/read_write.c:1040 [inline]\n __se_sys_writev fs/read_write.c:1037 [inline]\n __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nBytes 68-71 of 2508 are uninitialized\nMemory access of size 2508 starts at ffff888114f9b000\nData copied to user address 00007f7fe09ff2e0\n\nCPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011", "category":"general", "title":"Synopsis" } ], "publisher":{ "issuing_authority":"openEuler security committee", "name":"openEuler", "namespace":"https://www.openeuler.org", "contact_details":"openeuler-security@openeuler.org", "category":"vendor" }, "references":[ { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2022-48855" }, { "summary":"CVE-2022-48855 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2022/csaf-openeuler-cve-2022-48855.json" }, { "summary":"openEuler-SA-2024-1895", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1895" }, { "summary":"CVE-2022-48855", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2022-48855&packageName=kernel" } ], "title":"openEuler cve CVE-2022-48855", "tracking":{ "initial_release_date":"2024-07-26T20:58:42+08:00", "revision_history":[ { "date":"2024-07-26T20:58:42+08:00", "summary":"Initial", "number":"1.0.0" }, { "date":"2024-07-27T10:35:00+08:00", "summary":"Current version", "number":"2.0.0" }, { "date":"2024-08-19T17:35:45+08:00", "summary":"Current version", "number":"3.0.0" } ], "generator":{ "date":"2024-08-19T17:35:45+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2024-08-19T17:35:45+08:00", "id":"CVE-2022-48855", "version":"3.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"openEuler-20.03-LTS-SP4", "name":"openEuler-20.03-LTS-SP4" }, "name":"openEuler-20.03-LTS-SP4", "category":"product_version" } ], "category":"product_name" }, { "name":"aarch64", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:20.03-LTS-SP4" }, "product_id":"bpftool-4.19.90-2407.5.0.0287.oe2003sp4.aarch64.rpm", "name":"bpftool-4.19.90-2407.5.0.0287.oe2003sp4.aarch64.rpm" }, "name":"bpftool-4.19.90-2407.5.0.0287.oe2003sp4.aarch64.rpm", "category":"product_version" }, { "product":{ 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include/linux/instrumented.h:121 [inline]\n copyout lib/iov_iter.c:154 [inline]\n _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668\n copy_to_iter include/linux/uio.h:162 [inline]\n simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519\n __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425\n skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533\n skb_copy_datagram_msg include/linux/skbuff.h:3696 [inline]\n netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977\n sock_recvmsg_nosec net/socket.c:948 [inline]\n sock_recvmsg net/socket.c:966 [inline]\n __sys_recvfrom+0x795/0xa10 net/socket.c:2097\n __do_sys_recvfrom net/socket.c:2115 [inline]\n __se_sys_recvfrom net/socket.c:2111 [inline]\n __x64_sys_recvfrom+0x19d/0x210 net/socket.c:2111\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nUninit was created at:\n slab_post_alloc_hook mm/slab.h:737 [inline]\n slab_alloc_node mm/slub.c:3247 [inline]\n __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975\n kmalloc_reserve net/core/skbuff.c:354 [inline]\n __alloc_skb+0x545/0xf90 net/core/skbuff.c:426\n alloc_skb include/linux/skbuff.h:1158 [inline]\n netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248\n __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373\n netlink_dump_start include/linux/netlink.h:254 [inline]\n inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341\n sock_diag_rcv_msg+0x24a/0x620\n netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494\n sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:277\n netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]\n netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343\n netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919\n sock_sendmsg_nosec net/socket.c:705 [inline]\n sock_sendmsg net/socket.c:725 [inline]\n sock_write_iter+0x594/0x690 net/socket.c:1061\n do_iter_readv_writev+0xa7f/0xc70\n do_iter_write+0x52c/0x1500 fs/read_write.c:851\n vfs_writev fs/read_write.c:924 [inline]\n do_writev+0x645/0xe00 fs/read_write.c:967\n __do_sys_writev fs/read_write.c:1040 [inline]\n __se_sys_writev fs/read_write.c:1037 [inline]\n __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037\n do_syscall_x64 arch/x86/entry/common.c:51 [inline]\n do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nBytes 68-71 of 2508 are uninitialized\nMemory access of size 2508 starts at ffff888114f9b000\nData copied to user address 00007f7fe09ff2e0\n\nCPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-20.03-LTS-SP4:bpftool-4.19.90-2407.5.0.0287.oe2003sp4.aarch64", "openEuler-20.03-LTS-SP4:bpftool-debuginfo-4.19.90-2407.5.0.0287.oe2003sp4.aarch64", 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"openEuler-20.03-LTS-SP4:python2-perf-debuginfo-4.19.90-2407.5.0.0287.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:python3-perf-4.19.90-2407.5.0.0287.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:python3-perf-debuginfo-4.19.90-2407.5.0.0287.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-4.19.90-2407.5.0.0287.oe2003sp4.src" ], "details":"kernel security update", "category":"vendor_fix", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1895" } ], "scores":[ { "cvss_v3":{ "baseSeverity":"HIGH", "baseScore":7.1, "vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version":"3.1" }, "products":[ "openEuler-20.03-LTS-SP4:bpftool-4.19.90-2407.5.0.0287.oe2003sp4.aarch64", "openEuler-20.03-LTS-SP4:bpftool-debuginfo-4.19.90-2407.5.0.0287.oe2003sp4.aarch64", "openEuler-20.03-LTS-SP4:kernel-4.19.90-2407.5.0.0287.oe2003sp4.aarch64", "openEuler-20.03-LTS-SP4:kernel-debuginfo-4.19.90-2407.5.0.0287.oe2003sp4.aarch64", 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"openEuler-20.03-LTS-SP4:python2-perf-4.19.90-2407.5.0.0287.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:python2-perf-debuginfo-4.19.90-2407.5.0.0287.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:python3-perf-4.19.90-2407.5.0.0287.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:python3-perf-debuginfo-4.19.90-2407.5.0.0287.oe2003sp4.x86_64", "openEuler-20.03-LTS-SP4:kernel-4.19.90-2407.5.0.0287.oe2003sp4.src" ] } ], "threats":[ { "details":"High", "category":"impact" } ], "title":"CVE-2022-48855" } ] }