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  "vulnerabilities": [
    {
      "cve": "CVE-2023-52922",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
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      "notes": [
        {
          "category": "description",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: Fix UAF in bcm_proc_show()\n\nBUG: KASAN: slab-use-after-free in bcm_proc_show+0x969/0xa80\nRead of size 8 at addr ffff888155846230 by task cat/7862\n\nCPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 #230\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n <TASK>\n dump_stack_lvl+0xd5/0x150\n print_report+0xc1/0x5e0\n kasan_report+0xba/0xf0\n bcm_proc_show+0x969/0xa80\n seq_read_iter+0x4f6/0x1260\n seq_read+0x165/0x210\n proc_reg_read+0x227/0x300\n vfs_read+0x1d5/0x8d0\n ksys_read+0x11e/0x240\n do_syscall_64+0x35/0xb0\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nAllocated by task 7846:\n kasan_save_stack+0x1e/0x40\n kasan_set_track+0x21/0x30\n __kasan_kmalloc+0x9e/0xa0\n bcm_sendmsg+0x264b/0x44e0\n sock_sendmsg+0xda/0x180\n ____sys_sendmsg+0x735/0x920\n ___sys_sendmsg+0x11d/0x1b0\n __sys_sendmsg+0xfa/0x1d0\n do_syscall_64+0x35/0xb0\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nFreed by task 7846:\n kasan_save_stack+0x1e/0x40\n kasan_set_track+0x21/0x30\n kasan_save_free_info+0x27/0x40\n ____kasan_slab_free+0x161/0x1c0\n slab_free_freelist_hook+0x119/0x220\n __kmem_cache_free+0xb4/0x2e0\n rcu_core+0x809/0x1bd0\n\nbcm_op is freed before procfs entry be removed in bcm_release(),\nthis lead to bcm_proc_show() may read the freed bcm_op.",
          "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"
        }
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2023-52922"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/11b8e27ed448baa385d90154a141466bd5e92f18",
          "url": "https://git.kernel.org/stable/c/11b8e27ed448baa385d90154a141466bd5e92f18"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/3c3941bb1eb53abe7d640ffee5c4d6b559829ab3",
          "url": "https://git.kernel.org/stable/c/3c3941bb1eb53abe7d640ffee5c4d6b559829ab3"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/55c3b96074f3f9b0aee19bf93cd71af7516582bb",
          "url": "https://git.kernel.org/stable/c/55c3b96074f3f9b0aee19bf93cd71af7516582bb"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/9533dbfac0ff7edd77a5fa2c24974b1d66c8b0a6",
          "url": "https://git.kernel.org/stable/c/9533dbfac0ff7edd77a5fa2c24974b1d66c8b0a6"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/995f47d76647708ec26c6e388663ad4f3f264787",
          "url": "https://git.kernel.org/stable/c/995f47d76647708ec26c6e388663ad4f3f264787"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/9b58d36d0c1ea29a9571e0222a9c29df0ccfb7ff",
          "url": "https://git.kernel.org/stable/c/9b58d36d0c1ea29a9571e0222a9c29df0ccfb7ff"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/cf254b4f68e480e73dab055014e002b77aed30ed",
          "url": "https://git.kernel.org/stable/c/cf254b4f68e480e73dab055014e002b77aed30ed"
        },
        {
          "category": "external",
          "summary": "https://git.kernel.org/stable/c/dfd0aa26e9a07f2ce546ccf8304ead6a2914e8a7",
          "url": "https://git.kernel.org/stable/c/dfd0aa26e9a07f2ce546ccf8304ead6a2914e8a7"
        },
        {
          "category": "external",
          "summary": "https://allelesecurity.com/use-after-free-vulnerability-in-can-bcm-subsystem-leading-to-information-disclosure-cve-2023-52922/",
          "url": "https://allelesecurity.com/use-after-free-vulnerability-in-can-bcm-subsystem-leading-to-information-disclosure-cve-2023-52922/"
        }
      ],
      "release_date": "2024-11-28T00:00:00Z",
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        },
        {
          "category": "impact",
          "date": "2026-06-12T13:04:12.502209Z",
          "details": "Not affected: CVE-2023-52922 is a Linux kernel bug in the CAN BCM subsystem’s procfs handler (bcm_proc_show), i.e., kernel-space code unrelated to user-space applications. Squid 3.5.20 does not include or interface with the kernel’s CAN/BCM procfs functionality, so the vulnerable code path is neither present nor reachable within the Squid package. This CVE therefore falls outside the scope of the Squid project.",
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}