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        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
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      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10",
          "product_id": "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64"
        },
        "product_reference": "linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10",
          "product_id": "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64"
        },
        "product_reference": "hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-10"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64 as a component of Debian 10",
          "product_id": "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64"
        },
        "product_reference": "linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64",
        "relates_to_product_reference": "Debian-10"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-52637",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "notes": [
        {
          "category": "description",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)\n\nLock jsk->sk to prevent UAF when setsockopt(..., SO_J1939_FILTER, ...)\nmodifies jsk->filters while receiving packets.\n\nFollowing trace was seen on affected system:\n ==================================================================\n BUG: KASAN: slab-use-after-free in j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n Read of size 4 at addr ffff888012144014 by task j1939/350\n\n CPU: 0 PID: 350 Comm: j1939 Tainted: G        W  OE      6.5.0-rc5 #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\n Call Trace:\n  print_report+0xd3/0x620\n  ? kasan_complete_mode_report_info+0x7d/0x200\n  ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n  kasan_report+0xc2/0x100\n  ? j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n  __asan_load4+0x84/0xb0\n  j1939_sk_recv_match_one+0x1af/0x2d0 [can_j1939]\n  j1939_sk_recv+0x20b/0x320 [can_j1939]\n  ? __kasan_check_write+0x18/0x20\n  ? __pfx_j1939_sk_recv+0x10/0x10 [can_j1939]\n  ? j1939_simple_recv+0x69/0x280 [can_j1939]\n  ? j1939_ac_recv+0x5e/0x310 [can_j1939]\n  j1939_can_recv+0x43f/0x580 [can_j1939]\n  ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n  ? raw_rcv+0x42/0x3c0 [can_raw]\n  ? __pfx_j1939_can_recv+0x10/0x10 [can_j1939]\n  can_rcv_filter+0x11f/0x350 [can]\n  can_receive+0x12f/0x190 [can]\n  ? __pfx_can_rcv+0x10/0x10 [can]\n  can_rcv+0xdd/0x130 [can]\n  ? __pfx_can_rcv+0x10/0x10 [can]\n  __netif_receive_skb_one_core+0x13d/0x150\n  ? __pfx___netif_receive_skb_one_core+0x10/0x10\n  ? __kasan_check_write+0x18/0x20\n  ? _raw_spin_lock_irq+0x8c/0xe0\n  __netif_receive_skb+0x23/0xb0\n  process_backlog+0x107/0x260\n  __napi_poll+0x69/0x310\n  net_rx_action+0x2a1/0x580\n  ? __pfx_net_rx_action+0x10/0x10\n  ? __pfx__raw_spin_lock+0x10/0x10\n  ? handle_irq_event+0x7d/0xa0\n  __do_softirq+0xf3/0x3f8\n  do_softirq+0x53/0x80\n  </IRQ>\n  <TASK>\n  __local_bh_enable_ip+0x6e/0x70\n  netif_rx+0x16b/0x180\n  can_send+0x32b/0x520 [can]\n  ? __pfx_can_send+0x10/0x10 [can]\n  ? __check_object_size+0x299/0x410\n  raw_sendmsg+0x572/0x6d0 [can_raw]\n  ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n  ? apparmor_socket_sendmsg+0x2f/0x40\n  ? __pfx_raw_sendmsg+0x10/0x10 [can_raw]\n  sock_sendmsg+0xef/0x100\n  sock_write_iter+0x162/0x220\n  ? __pfx_sock_write_iter+0x10/0x10\n  ? __rtnl_unlock+0x47/0x80\n  ? security_file_permission+0x54/0x320\n  vfs_write+0x6ba/0x750\n  ? __pfx_vfs_write+0x10/0x10\n  ? __fget_light+0x1ca/0x1f0\n  ? __rcu_read_unlock+0x5b/0x280\n  ksys_write+0x143/0x170\n  ? __pfx_ksys_write+0x10/0x10\n  ? __kasan_check_read+0x15/0x20\n  ? fpregs_assert_state_consistent+0x62/0x70\n  __x64_sys_write+0x47/0x60\n  do_syscall_64+0x60/0x90\n  ? do_syscall_64+0x6d/0x90\n  ? irqentry_exit+0x3f/0x50\n  ? exc_page_fault+0x79/0xf0\n  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Allocated by task 348:\n  kasan_save_stack+0x2a/0x50\n  kasan_set_track+0x29/0x40\n  kasan_save_alloc_info+0x1f/0x30\n  __kasan_kmalloc+0xb5/0xc0\n  __kmalloc_node_track_caller+0x67/0x160\n  j1939_sk_setsockopt+0x284/0x450 [can_j1939]\n  __sys_setsockopt+0x15c/0x2f0\n  __x64_sys_setsockopt+0x6b/0x80\n  do_syscall_64+0x60/0x90\n  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\n Freed by task 349:\n  kasan_save_stack+0x2a/0x50\n  kasan_set_track+0x29/0x40\n  kasan_save_free_info+0x2f/0x50\n  __kasan_slab_free+0x12e/0x1c0\n  __kmem_cache_free+0x1b9/0x380\n  kfree+0x7a/0x120\n  j1939_sk_setsockopt+0x3b2/0x450 [can_j1939]\n  __sys_setsockopt+0x15c/0x2f0\n  __x64_sys_setsockopt+0x6b/0x80\n  do_syscall_64+0x60/0x90\n  entry_SYSCALL_64_after_hwframe+0x6e/0xd8",
          "title": "Vulnerability description"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
        "known_not_affected": [
          "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all",
          "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all",
          "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64",
          "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all",
          "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2023-52637"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/08de58abedf6e69396e1207e4f99ef8904b2b532",
          "url": "https://git.kernel.org/stable/c/08de58abedf6e69396e1207e4f99ef8904b2b532"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/41ccb5bcbf03f02d820bc6ea8390811859f558f8",
          "url": "https://git.kernel.org/stable/c/41ccb5bcbf03f02d820bc6ea8390811859f558f8"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/4dd684d4bb3cd5454e0bf6e2a1bdfbd5c9c872ed",
          "url": "https://git.kernel.org/stable/c/4dd684d4bb3cd5454e0bf6e2a1bdfbd5c9c872ed"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/978e50ef8c38dc71bd14d1b0143d554ff5d188ba",
          "url": "https://git.kernel.org/stable/c/978e50ef8c38dc71bd14d1b0143d554ff5d188ba"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/efe7cf828039aedb297c1f9920b638fffee6aabc",
          "url": "https://git.kernel.org/stable/c/efe7cf828039aedb297c1f9920b638fffee6aabc"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/f84e7534457dcd7835be743517c35378bb4e7c50",
          "url": "https://git.kernel.org/stable/c/f84e7534457dcd7835be743517c35378bb4e7c50"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/fc74b9cb789cae061bbca7b203a3842e059f6b5d",
          "url": "https://git.kernel.org/stable/c/fc74b9cb789cae061bbca7b203a3842e059f6b5d"
        },
        {
          "category": "external",
          "summary": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
          "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
        }
      ],
      "release_date": "2024-04-03T14:54:40Z",
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        },
        {
          "category": "impact",
          "date": "2026-08-22T07:53:24.744184Z",
          "details": "CVE-2023-52637 does not affect debian10els because the vulnerable code was never introduced. The use-after-free is in the SAE J1939 CAN protocol's socket filter matching (j1939_sk_match_filter). This branch does not implement the j1939 protocol at all.",
          "product_ids": [
            "Debian-10:hyperv-daemons-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libbpf-dev-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libbpf4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libcpupower-dev-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:libcpupower1-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-compiler-gcc-8-x86-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-config-4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-cpupower-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-doc-4.19-0:4.19.325-1+tuxcare.els1.all",
            "Debian-10:linux-headers-4.19.0-28-all-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-headers-4.19.0-28-all-amd64-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-headers-4.19.0-28-amd64-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-headers-4.19.0-28-common-0:4.19.325-1+tuxcare.els1.all",
            "Debian-10:linux-image-4.19.0-28-amd64-unsigned-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-image-amd64-signed-template-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-kbuild-4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-libc-dev-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-perf-4.19-0:4.19.325-1+tuxcare.els1.amd64",
            "Debian-10:linux-source-4.19-0:4.19.325-1+tuxcare.els1.all",
            "Debian-10:linux-support-4.19.0-28-0:4.19.325-1+tuxcare.els1.all"
          ]
        }
      ]
    }
  ]
}