GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2023-53147 (GCVE-0-2023-53147)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:03 – Updated: 2026-05-11 19:39
VLAI
Title
xfrm: add NULL check in xfrm_update_ae_params
Summary
In the Linux kernel, the following vulnerability has been resolved: xfrm: add NULL check in xfrm_update_ae_params Normally, x->replay_esn and x->preplay_esn should be allocated at xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the xfrm_update_ae_params(...) is okay to update them. However, the current implementation of xfrm_new_ae(...) allows a malicious user to directly dereference a NULL pointer and crash the kernel like below. BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0 Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4 RIP: 0010:memcpy_orig+0xad/0x140 Code: e8 4c 89 5f e0 48 8d 7f e0 73 d2 83 c2 20 48 29 d6 48 29 d7 83 fa 10 72 34 4c 8b 06 4c 8b 4e 08 c RSP: 0018:ffff888008f57658 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff888008bd0000 RCX: ffffffff8238e571 RDX: 0000000000000018 RSI: ffff888007f64844 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888008f57818 R13: ffff888007f64aa4 R14: 0000000000000000 R15: 0000000000000000 FS: 00000000014013c0(0000) GS:ffff88806d600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000054d8000 CR4: 00000000000006f0 Call Trace: <TASK> ? __die+0x1f/0x70 ? page_fault_oops+0x1e8/0x500 ? __pfx_is_prefetch.constprop.0+0x10/0x10 ? __pfx_page_fault_oops+0x10/0x10 ? _raw_spin_unlock_irqrestore+0x11/0x40 ? fixup_exception+0x36/0x460 ? _raw_spin_unlock_irqrestore+0x11/0x40 ? exc_page_fault+0x5e/0xc0 ? asm_exc_page_fault+0x26/0x30 ? xfrm_update_ae_params+0xd1/0x260 ? memcpy_orig+0xad/0x140 ? __pfx__raw_spin_lock_bh+0x10/0x10 xfrm_update_ae_params+0xe7/0x260 xfrm_new_ae+0x298/0x4e0 ? __pfx_xfrm_new_ae+0x10/0x10 ? __pfx_xfrm_new_ae+0x10/0x10 xfrm_user_rcv_msg+0x25a/0x410 ? __pfx_xfrm_user_rcv_msg+0x10/0x10 ? __alloc_skb+0xcf/0x210 ? stack_trace_save+0x90/0xd0 ? filter_irq_stacks+0x1c/0x70 ? __stack_depot_save+0x39/0x4e0 ? __kasan_slab_free+0x10a/0x190 ? kmem_cache_free+0x9c/0x340 ? netlink_recvmsg+0x23c/0x660 ? sock_recvmsg+0xeb/0xf0 ? __sys_recvfrom+0x13c/0x1f0 ? __x64_sys_recvfrom+0x71/0x90 ? do_syscall_64+0x3f/0x90 ? entry_SYSCALL_64_after_hwframe+0x72/0xdc ? copyout+0x3e/0x50 netlink_rcv_skb+0xd6/0x210 ? __pfx_xfrm_user_rcv_msg+0x10/0x10 ? __pfx_netlink_rcv_skb+0x10/0x10 ? __pfx_sock_has_perm+0x10/0x10 ? mutex_lock+0x8d/0xe0 ? __pfx_mutex_lock+0x10/0x10 xfrm_netlink_rcv+0x44/0x50 netlink_unicast+0x36f/0x4c0 ? __pfx_netlink_unicast+0x10/0x10 ? netlink_recvmsg+0x500/0x660 netlink_sendmsg+0x3b7/0x700 This Null-ptr-deref bug is assigned CVE-2023-3772. And this commit adds additional NULL check in xfrm_update_ae_params to fix the NPD.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < ed1cba039309c80b49719fcff3e3d7cdddb73d96 (git)
Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < 44f69c96f8a147413c23c68cda4d6fb5e23137cd (git)
Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < 8046beb890ebc83c5820188c650073e1c6066e67 (git)
Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < bd30aa9c7febb6e709670cd5154194189ca3b7b5 (git)
Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < 075448a2eb753f813fe873cfa52853e9fef8eedb (git)
Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < 87b655f4936b6fc01f3658aa88a22c923b379ebd (git)
Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < 53df4be4f5221e90dc7aa9ce745a9a21bb7024f4 (git)
Affected: d8647b79c3b7e223ac051439d165bc8e7bbb832f , < 00374d9b6d9f932802b55181be9831aa948e5b7c (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.39
Unaffected: 0 , < 2.6.39 (semver)
Unaffected: 4.14.324 , ≤ 4.14.* (semver)
Unaffected: 4.19.293 , ≤ 4.19.* (semver)
Unaffected: 5.4.255 , ≤ 5.4.* (semver)
Unaffected: 5.10.192 , ≤ 5.10.* (semver)
Unaffected: 5.15.128 , ≤ 5.15.* (semver)
Unaffected: 6.1.47 , ≤ 6.1.* (semver)
Unaffected: 6.4.12 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/xfrm/xfrm_user.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "ed1cba039309c80b49719fcff3e3d7cdddb73d96",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            },
            {
              "lessThan": "44f69c96f8a147413c23c68cda4d6fb5e23137cd",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            },
            {
              "lessThan": "8046beb890ebc83c5820188c650073e1c6066e67",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            },
            {
              "lessThan": "bd30aa9c7febb6e709670cd5154194189ca3b7b5",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            },
            {
              "lessThan": "075448a2eb753f813fe873cfa52853e9fef8eedb",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            },
            {
              "lessThan": "87b655f4936b6fc01f3658aa88a22c923b379ebd",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            },
            {
              "lessThan": "53df4be4f5221e90dc7aa9ce745a9a21bb7024f4",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            },
            {
              "lessThan": "00374d9b6d9f932802b55181be9831aa948e5b7c",
              "status": "affected",
              "version": "d8647b79c3b7e223ac051439d165bc8e7bbb832f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/xfrm/xfrm_user.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.39"
            },
            {
              "lessThan": "2.6.39",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.324",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.293",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.255",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.192",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.47",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.324",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.293",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.255",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.192",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.128",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.47",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.12",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "2.6.39",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: add NULL check in xfrm_update_ae_params\n\nNormally, x-\u003ereplay_esn and x-\u003epreplay_esn should be allocated at\nxfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the\nxfrm_update_ae_params(...) is okay to update them. However, the current\nimplementation of xfrm_new_ae(...) allows a malicious user to directly\ndereference a NULL pointer and crash the kernel like below.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\nPGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0\nOops: 0002 [#1] PREEMPT SMP KASAN NOPTI\nCPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4\nRIP: 0010:memcpy_orig+0xad/0x140\nCode: e8 4c 89 5f e0 48 8d 7f e0 73 d2 83 c2 20 48 29 d6 48 29 d7 83 fa 10 72 34 4c 8b 06 4c 8b 4e 08 c\nRSP: 0018:ffff888008f57658 EFLAGS: 00000202\nRAX: 0000000000000000 RBX: ffff888008bd0000 RCX: ffffffff8238e571\nRDX: 0000000000000018 RSI: ffff888007f64844 RDI: 0000000000000000\nRBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000000 R12: ffff888008f57818\nR13: ffff888007f64aa4 R14: 0000000000000000 R15: 0000000000000000\nFS:  00000000014013c0(0000) GS:ffff88806d600000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000000 CR3: 00000000054d8000 CR4: 00000000000006f0\nCall Trace:\n \u003cTASK\u003e\n ? __die+0x1f/0x70\n ? page_fault_oops+0x1e8/0x500\n ? __pfx_is_prefetch.constprop.0+0x10/0x10\n ? __pfx_page_fault_oops+0x10/0x10\n ? _raw_spin_unlock_irqrestore+0x11/0x40\n ? fixup_exception+0x36/0x460\n ? _raw_spin_unlock_irqrestore+0x11/0x40\n ? exc_page_fault+0x5e/0xc0\n ? asm_exc_page_fault+0x26/0x30\n ? xfrm_update_ae_params+0xd1/0x260\n ? memcpy_orig+0xad/0x140\n ? __pfx__raw_spin_lock_bh+0x10/0x10\n xfrm_update_ae_params+0xe7/0x260\n xfrm_new_ae+0x298/0x4e0\n ? __pfx_xfrm_new_ae+0x10/0x10\n ? __pfx_xfrm_new_ae+0x10/0x10\n xfrm_user_rcv_msg+0x25a/0x410\n ? __pfx_xfrm_user_rcv_msg+0x10/0x10\n ? __alloc_skb+0xcf/0x210\n ? stack_trace_save+0x90/0xd0\n ? filter_irq_stacks+0x1c/0x70\n ? __stack_depot_save+0x39/0x4e0\n ? __kasan_slab_free+0x10a/0x190\n ? kmem_cache_free+0x9c/0x340\n ? netlink_recvmsg+0x23c/0x660\n ? sock_recvmsg+0xeb/0xf0\n ? __sys_recvfrom+0x13c/0x1f0\n ? __x64_sys_recvfrom+0x71/0x90\n ? do_syscall_64+0x3f/0x90\n ? entry_SYSCALL_64_after_hwframe+0x72/0xdc\n ? copyout+0x3e/0x50\n netlink_rcv_skb+0xd6/0x210\n ? __pfx_xfrm_user_rcv_msg+0x10/0x10\n ? __pfx_netlink_rcv_skb+0x10/0x10\n ? __pfx_sock_has_perm+0x10/0x10\n ? mutex_lock+0x8d/0xe0\n ? __pfx_mutex_lock+0x10/0x10\n xfrm_netlink_rcv+0x44/0x50\n netlink_unicast+0x36f/0x4c0\n ? __pfx_netlink_unicast+0x10/0x10\n ? netlink_recvmsg+0x500/0x660\n netlink_sendmsg+0x3b7/0x700\n\nThis Null-ptr-deref bug is assigned CVE-2023-3772. And this commit\nadds additional NULL check in xfrm_update_ae_params to fix the NPD."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:39:21.360Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ed1cba039309c80b49719fcff3e3d7cdddb73d96"
        },
        {
          "url": "https://git.kernel.org/stable/c/44f69c96f8a147413c23c68cda4d6fb5e23137cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/8046beb890ebc83c5820188c650073e1c6066e67"
        },
        {
          "url": "https://git.kernel.org/stable/c/bd30aa9c7febb6e709670cd5154194189ca3b7b5"
        },
        {
          "url": "https://git.kernel.org/stable/c/075448a2eb753f813fe873cfa52853e9fef8eedb"
        },
        {
          "url": "https://git.kernel.org/stable/c/87b655f4936b6fc01f3658aa88a22c923b379ebd"
        },
        {
          "url": "https://git.kernel.org/stable/c/53df4be4f5221e90dc7aa9ce745a9a21bb7024f4"
        },
        {
          "url": "https://git.kernel.org/stable/c/00374d9b6d9f932802b55181be9831aa948e5b7c"
        }
      ],
      "title": "xfrm: add NULL check in xfrm_update_ae_params",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53147",
    "datePublished": "2025-09-15T14:03:08.937Z",
    "dateReserved": "2025-05-02T15:51:43.565Z",
    "dateUpdated": "2026-05-11T19:39:21.360Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53147",
      "date": "2026-09-16",
      "epss": "0.00156",
      "percentile": "0.05147"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53147\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-15T14:15:37.133\",\"lastModified\":\"2026-06-17T06:44:23.223\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nxfrm: add NULL check in xfrm_update_ae_params\\n\\nNormally, x-\u003ereplay_esn and x-\u003epreplay_esn should be allocated at\\nxfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the\\nxfrm_update_ae_params(...) is okay to update them. However, the current\\nimplementation of xfrm_new_ae(...) allows a malicious user to directly\\ndereference a NULL pointer and crash the kernel like below.\\n\\nBUG: kernel NULL pointer dereference, address: 0000000000000000\\nPGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0\\nOops: 0002 [#1] PREEMPT SMP KASAN NOPTI\\nCPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4\\nRIP: 0010:memcpy_orig+0xad/0x140\\nCode: e8 4c 89 5f e0 48 8d 7f e0 73 d2 83 c2 20 48 29 d6 48 29 d7 83 fa 10 72 34 4c 8b 06 4c 8b 4e 08 c\\nRSP: 0018:ffff888008f57658 EFLAGS: 00000202\\nRAX: 0000000000000000 RBX: ffff888008bd0000 RCX: ffffffff8238e571\\nRDX: 0000000000000018 RSI: ffff888007f64844 RDI: 0000000000000000\\nRBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000000 R12: ffff888008f57818\\nR13: ffff888007f64aa4 R14: 0000000000000000 R15: 0000000000000000\\nFS:  00000000014013c0(0000) GS:ffff88806d600000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 0000000000000000 CR3: 00000000054d8000 CR4: 00000000000006f0\\nCall Trace:\\n \u003cTASK\u003e\\n ? __die+0x1f/0x70\\n ? page_fault_oops+0x1e8/0x500\\n ? __pfx_is_prefetch.constprop.0+0x10/0x10\\n ? __pfx_page_fault_oops+0x10/0x10\\n ? _raw_spin_unlock_irqrestore+0x11/0x40\\n ? fixup_exception+0x36/0x460\\n ? _raw_spin_unlock_irqrestore+0x11/0x40\\n ? exc_page_fault+0x5e/0xc0\\n ? asm_exc_page_fault+0x26/0x30\\n ? xfrm_update_ae_params+0xd1/0x260\\n ? memcpy_orig+0xad/0x140\\n ? __pfx__raw_spin_lock_bh+0x10/0x10\\n xfrm_update_ae_params+0xe7/0x260\\n xfrm_new_ae+0x298/0x4e0\\n ? __pfx_xfrm_new_ae+0x10/0x10\\n ? __pfx_xfrm_new_ae+0x10/0x10\\n xfrm_user_rcv_msg+0x25a/0x410\\n ? __pfx_xfrm_user_rcv_msg+0x10/0x10\\n ? __alloc_skb+0xcf/0x210\\n ? stack_trace_save+0x90/0xd0\\n ? filter_irq_stacks+0x1c/0x70\\n ? __stack_depot_save+0x39/0x4e0\\n ? __kasan_slab_free+0x10a/0x190\\n ? kmem_cache_free+0x9c/0x340\\n ? netlink_recvmsg+0x23c/0x660\\n ? sock_recvmsg+0xeb/0xf0\\n ? __sys_recvfrom+0x13c/0x1f0\\n ? __x64_sys_recvfrom+0x71/0x90\\n ? do_syscall_64+0x3f/0x90\\n ? entry_SYSCALL_64_after_hwframe+0x72/0xdc\\n ? copyout+0x3e/0x50\\n netlink_rcv_skb+0xd6/0x210\\n ? __pfx_xfrm_user_rcv_msg+0x10/0x10\\n ? __pfx_netlink_rcv_skb+0x10/0x10\\n ? __pfx_sock_has_perm+0x10/0x10\\n ? mutex_lock+0x8d/0xe0\\n ? __pfx_mutex_lock+0x10/0x10\\n xfrm_netlink_rcv+0x44/0x50\\n netlink_unicast+0x36f/0x4c0\\n ? __pfx_netlink_unicast+0x10/0x10\\n ? netlink_recvmsg+0x500/0x660\\n netlink_sendmsg+0x3b7/0x700\\n\\nThis Null-ptr-deref bug is assigned CVE-2023-3772. And this commit\\nadds additional NULL check in xfrm_update_ae_params to fix the NPD.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/xfrm/xfrm_user.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"ed1cba039309c80b49719fcff3e3d7cdddb73d96\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"44f69c96f8a147413c23c68cda4d6fb5e23137cd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"8046beb890ebc83c5820188c650073e1c6066e67\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"bd30aa9c7febb6e709670cd5154194189ca3b7b5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"075448a2eb753f813fe873cfa52853e9fef8eedb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"87b655f4936b6fc01f3658aa88a22c923b379ebd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"53df4be4f5221e90dc7aa9ce745a9a21bb7024f4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8647b79c3b7e223ac051439d165bc8e7bbb832f\",\"lessThan\":\"00374d9b6d9f932802b55181be9831aa948e5b7c\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/xfrm/xfrm_user.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.39\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.39\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.324\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.293\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.255\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.192\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.128\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.47\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.4.12\",\"lessThanOrEqual\":\"6.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.5\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.39\",\"versionEndExcluding\":\"4.14.324\",\"matchCriteriaId\":\"2D1848FB-1473-45A5-A154-8CA96F49B896\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.293\",\"matchCriteriaId\":\"39603052-E341-4096-8535-38D44A60E845\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.255\",\"matchCriteriaId\":\"1379E40A-2AC3-484E-929A-7F46B6C3B521\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.192\",\"matchCriteriaId\":\"9396FFDC-6A0D-44B7-9368-21B456F6D4AE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.128\",\"matchCriteriaId\":\"1415629F-F97B-4880-BA1E-AF3DBB8EF305\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.47\",\"matchCriteriaId\":\"2EEA01B0-0151-4E0F-B140-1A441EEDD717\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.4.12\",\"matchCriteriaId\":\"CF8ECF64-40AE-49AB-8315-4D83F9F56ECF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B3E6E4D-E24E-4630-B00C-8C9901C597B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F5608371-157A-4318-8A2E-4104C3467EA1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"2226A776-DF8C-49E0-A030-0A7853BB018A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"6F15C659-DF06-455A-9765-0E6DE920F29A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"5B1C14ED-ABC4-41D3-8D9C-D38C6A65B4DE\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/00374d9b6d9f932802b55181be9831aa948e5b7c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/075448a2eb753f813fe873cfa52853e9fef8eedb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/44f69c96f8a147413c23c68cda4d6fb5e23137cd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/53df4be4f5221e90dc7aa9ce745a9a21bb7024f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8046beb890ebc83c5820188c650073e1c6066e67\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/87b655f4936b6fc01f3658aa88a22c923b379ebd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bd30aa9c7febb6e709670cd5154194189ca3b7b5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ed1cba039309c80b49719fcff3e3d7cdddb73d96\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:12:33+00:00",
      "cve": "CVE-2023-53147",
      "id": "CVE-2023-53147",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "240",
      "product_status:known_affected": "166",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: xfrm: add NULL check in xfrm_update_ae_params",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53147.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-12T17:06:20Z",
      "cve": "CVE-2023-53147",
      "id": "CVE-2023-53147",
      "initial_release_date": "2025-09-17T23:29:56Z",
      "product_status:known_affected": "60",
      "product_status:known_not_affected": "96",
      "product_status:recommended": "617",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53147",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53147.json",
      "version": "55"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.