fkie_cve-2022-48855
Vulnerability from fkie_nvd
Published
2024-07-16 13:15
Modified
2024-11-21 07:34
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: sctp: fix kernel-infoleak for SCTP sockets syzbot reported a kernel infoleak [1] of 4 bytes. After analysis, it turned out r->idiag_expires is not initialized if inet_sctp_diag_fill() calls inet_diag_msg_common_fill() Make sure to clear idiag_timer/idiag_retrans/idiag_expires and let inet_diag_msg_sctpasoc_fill() fill them again if needed. [1] BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:121 [inline] BUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:154 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 instrument_copy_to_user include/linux/instrumented.h:121 [inline] copyout lib/iov_iter.c:154 [inline] _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 copy_to_iter include/linux/uio.h:162 [inline] simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519 __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425 skb_copy_datagram_iter+0xdc/0x270 net/core/datagram.c:533 skb_copy_datagram_msg include/linux/skbuff.h:3696 [inline] netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977 sock_recvmsg_nosec net/socket.c:948 [inline] sock_recvmsg net/socket.c:966 [inline] __sys_recvfrom+0x795/0xa10 net/socket.c:2097 __do_sys_recvfrom net/socket.c:2115 [inline] __se_sys_recvfrom net/socket.c:2111 [inline] __x64_sys_recvfrom+0x19d/0x210 net/socket.c:2111 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xae Uninit was created at: slab_post_alloc_hook mm/slab.h:737 [inline] slab_alloc_node mm/slub.c:3247 [inline] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0x545/0xf90 net/core/skbuff.c:426 alloc_skb include/linux/skbuff.h:1158 [inline] netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248 __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373 netlink_dump_start include/linux/netlink.h:254 [inline] inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341 sock_diag_rcv_msg+0x24a/0x620 netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494 sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:277 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x1093/0x1360 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x14d9/0x1720 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg net/socket.c:725 [inline] sock_write_iter+0x594/0x690 net/socket.c:1061 do_iter_readv_writev+0xa7f/0xc70 do_iter_write+0x52c/0x1500 fs/read_write.c:851 vfs_writev fs/read_write.c:924 [inline] do_writev+0x645/0xe00 fs/read_write.c:967 __do_sys_writev fs/read_write.c:1040 [inline] __se_sys_writev fs/read_write.c:1037 [inline] __x64_sys_writev+0xe5/0x120 fs/read_write.c:1037 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x44/0xae Bytes 68-71 of 2508 are uninitialized Memory access of size 2508 starts at ffff888114f9b000 Data copied to user address 00007f7fe09ff2e0 CPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
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              "versionEndExcluding": "5.15.29",
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          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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-\u003eidiag_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"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sctp: corrige la fuga de informaci\u00f3n del kernel para sockets SCTP syzbot inform\u00f3 una fuga de informaci\u00f3n del kernel [1] de 4 bytes. Despu\u00e9s del an\u00e1lisis, result\u00f3 que r-\u0026gt;idiag_expires no se inicializa si inet_sctp_diag_fill() llama a inet_diag_msg_common_fill(). Aseg\u00farese de borrar idiag_timer/idiag_retrans/idiag_expires y deje que inet_diag_msg_sctpasoc_fill() los complete nuevamente si es necesario. [1] ERROR: KMSAN: kernel-infoleak en instrument_copy_to_user include/linux/instrumented.h:121 [en l\u00ednea] ERROR: KMSAN: kernel-infoleak en copia lib/iov_iter.c:154 [en l\u00ednea] ERROR: KMSAN: kernel-infoleak en _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 instrument_copy_to_user include/linux/instrumented.h:121 [en l\u00ednea] copia lib/iov_iter.c:154 [en l\u00ednea] _copy_to_iter+0x6ef/0x25a0 lib/iov_iter.c:668 copy_to_iter include/linux/uio.h:162 [en l\u00ednea] simple_copy_to_iter+0xf3/0x140 net/core/datagram.c:519 __skb_datagram_iter+0x2d5/0x11b0 net/core/datagram.c:425 skb_copy_datagram_iter+0xdc/0x270 net/core/datagram .c:533 skb_copy_datagram_msg include/linux/skbuff.h:3696 [en l\u00ednea] netlink_recvmsg+0x669/0x1c80 net/netlink/af_netlink.c:1977 sock_recvmsg_nosec net/socket.c:948 [en l\u00ednea] sock_recvmsg net/socket.c:966 [en l\u00ednea] __sys_recvfrom+0x795/0xa10 net/socket.c:2097 __do_sys_recvfrom net/socket.c:2115 [en l\u00ednea] __se_sys_recvfrom net/socket.c:2111 [en l\u00ednea] __x64_sys_recvfrom+0x19d/0x210 net/socket.c: 2111 hacer_syscall_x64 arch/x86/entry/common.c:51 [en l\u00ednea] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 Entry_SYSCALL_64_after_hwframe+0x44/0xae Uninit se cre\u00f3 en: slab_post_alloc_hook mm/slab.h:737 [en l\u00ednea ] slab_alloc_node mm/slub.c:3247 [en l\u00ednea] __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4975 kmalloc_reserve net/core/skbuff.c:354 [en l\u00ednea] __alloc_skb+0x545/0xf90 net/core/skbuff.c: 426 alloc_skb include/linux/skbuff.h:1158 [en l\u00ednea] netlink_dump+0x3e5/0x16c0 net/netlink/af_netlink.c:2248 __netlink_dump_start+0xcf8/0xe90 net/netlink/af_netlink.c:2373 netlink_dump_start include/linux/netlink.h :254 [en l\u00ednea] inet_diag_handler_cmd+0x2e7/0x400 net/ipv4/inet_diag.c:1341 sock_diag_rcv_msg+0x24a/0x620 netlink_rcv_skb+0x40c/0x7e0 net/netlink/af_netlink.c:2494 sock_diag_rcv+0x63/ 0x80 net/core/sock_diag.c : 277 netlink_unicast_kernel net/netlink/af_netlink.c: 1317 [en l\u00ednea] netlink_unicast+0x1093/0x1360 netlink/af_netlink.c: 1343 netlink_sendmsg+0x14d9/0x1720 net/netlink/socks OCKE.C: 705 [en l\u00ednea] sock_sendmsg net/socket.c:725 [en l\u00ednea] sock_write_iter+0x594/0x690 net/socket.c:1061 do_iter_readv_writev+0xa7f/0xc70 do_iter_write+0x52c/0x1500 fs/read_write.c:851 vfs_writev fs/read_ escribir.c :924 [en l\u00ednea] do_writev+0x645/0xe00 fs/read_write.c:967 __do_sys_writev fs/read_write.c:1040 [en l\u00ednea] __se_sys_writev fs/read_write.c:1037 [en l\u00ednea] __x64_sys_writev+0xe5/0x120 fs/read_write.c: 1037 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82 Entry_SYSCALL_64_after_hwframe+0x44/0xae Los bytes 68-71 de 2508 no est\u00e1n inicializados Acceso a memoria de tama\u00f1o 2508 comienza en ffff888114f9b000 Datos copiados a la direcci\u00f3n de usuario 00007f7fe09ff2e0 CPU: 1 PID: 3478 Comm: syz-executor306 Not tainted 5.17.0-rc4-syzkaller #0 Nombre de hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011"
    }
  ],
  "id": "CVE-2022-48855",
  "lastModified": "2024-11-21T07:34:13.223",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-07-16T13:15:12.550",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/3fc0fd724d199e061432b66a8d85b7d48fe485f7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/1502f15b9f29c41883a6139f2923523873282a83"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/2d8fa3fdf4542a2174a72d92018f488d65d848c5"
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://git.kernel.org/stable/c/41a2864cf719c17294f417726edd411643462ab8"
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/633593a808980f82d251d0ca89730d8bb8b0220c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b7e4d9ba2ddb78801488b4c623875b81fb46b545"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bbf59d7ae558940cfa2b36a287fd1e88d83f89f8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/d828b0fe6631f3ae8709ac9a10c77c5836c76a08"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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