{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-53192 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53192 is a critical vulnerability in Linux kernel, published on 15 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-53192 and fix it if it is affected.\n\nWhat it is: CVE-2023-53192 is a critical vulnerability in Linux kernel, published on 15 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-53192 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-53192/ (Markdown: https://insights.sbomify.com/CVE-2023-53192/index.md)","id":"CVE-2023-53192","markdown":"https://insights.sbomify.com/CVE-2023-53192/index.md","name":"CVE-2023-53192","record":{"aliases":["BELL-CVE-2023-53192","DEBIAN-CVE-2023-53192","GHSA-5ghm-j624-hfm6","UBUNTU-CVE-2023-53192"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel VXLAN","requires_auth":"none","summary":"A flaw in the Linux kernel VXLAN module allows remote attackers to cause a system crash via an integer overflow leading to an out-of-bounds memory access.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-129","name":"Improper Validation of Array Index"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvxlan: Fix nexthop hash size\n\nThe nexthop code expects a 31 bit hash, such as what is returned by\nfib_multipath_hash() and rt6_multipath_hash(). Passing the 32 bit hash\nreturned by skb_get_hash() can lead to problems related to the fact that\n'int hash' is a negative number when the MSB is set.\n\nIn the case of hash threshold nexthop groups, nexthop_select_path_hthr()\nwill disproportionately select the first nexthop group entry. In the case\nof resilient nexthop groups, nexthop_select_path_res() may do an out of\nbounds access in nh_buckets[], for example:\n    hash = -912054133\n    num_nh_buckets = 2\n    bucket_index = 65535\n\nwhich leads to the following panic:\n\nBUG: unable to handle page fault for address: ffffc900025910c8\nPGD 100000067 P4D 100000067 PUD 10026b067 PMD 0\nOops: 0002 [#1] PREEMPT SMP KASAN NOPTI\nCPU: 4 PID: 856 Comm: kworker/4:3 Not tainted 6.5.0-rc2+ #34\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014\nWorkqueue: ipv6_addrconf addrconf_dad_work\nRIP: 0010:nexthop_select_path+0x197/0xbf0\nCode: c1 e4 05 be 08 00 00 00 4c 8b 35 a4 14 7e 01 4e 8d 6c 25 00 4a 8d 7c 25 08 48 01 dd e8 c2 25 15 ff 49 8d 7d 08 e8 39 13 15 ff \u003c4d\u003e 89 75 08 48 89 ef e8 7d 12 15 ff 48 8b 5d 00 e8 14 55 2f 00 85\nRSP: 0018:ffff88810c36f260 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 00000000002000c0 RCX: ffffffffaf02dd77\nRDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffc900025910c8\nRBP: ffffc900025910c0 R08: 0000000000000001 R09: fffff520004b2219\nR10: ffffc900025910cf R11: 31392d2068736168 R12: 00000000002000c0\nR13: ffffc900025910c0 R14: 00000000fffef608 R15: ffff88811840e900\nFS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffffc900025910c8 CR3: 0000000129d00000 CR4: 0000000000750ee0\nPKRU: 55555554\nCall Trace:\n \u003cTASK\u003e\n ? __die+0x23/0x70\n ? page_fault_oops+0x1ee/0x5c0\n ? __pfx_is_prefetch.constprop.0+0x10/0x10\n ? __pfx_page_fault_oops+0x10/0x10\n ? search_bpf_extables+0xfe/0x1c0\n ? fixup_exception+0x3b/0x470\n ? exc_page_fault+0xf6/0x110\n ? asm_exc_page_fault+0x26/0x30\n ? nexthop_select_path+0x197/0xbf0\n ? nexthop_select_path+0x197/0xbf0\n ? lock_is_held_type+0xe7/0x140\n vxlan_xmit+0x5b2/0x2340\n ? __lock_acquire+0x92b/0x3370\n ? __pfx_vxlan_xmit+0x10/0x10\n ? __pfx___lock_acquire+0x10/0x10\n ? __pfx_register_lock_class+0x10/0x10\n ? skb_network_protocol+0xce/0x2d0\n ? dev_hard_start_xmit+0xca/0x350\n ? __pfx_vxlan_xmit+0x10/0x10\n dev_hard_start_xmit+0xca/0x350\n __dev_queue_xmit+0x513/0x1e20\n ? __pfx___dev_queue_xmit+0x10/0x10\n ? __pfx_lock_release+0x10/0x10\n ? mark_held_locks+0x44/0x90\n ? skb_push+0x4c/0x80\n ? eth_header+0x81/0xe0\n ? __pfx_eth_header+0x10/0x10\n ? neigh_resolve_output+0x215/0x310\n ? ip6_finish_output2+0x2ba/0xc90\n ip6_finish_output2+0x2ba/0xc90\n ? lock_release+0x236/0x3e0\n ? ip6_mtu+0xbb/0x240\n ? __pfx_ip6_finish_output2+0x10/0x10\n ? find_held_lock+0x83/0xa0\n ? lock_is_held_type+0xe7/0x140\n ip6_finish_output+0x1ee/0x780\n ip6_output+0x138/0x460\n ? __pfx_ip6_output+0x10/0x10\n ? __pfx___lock_acquire+0x10/0x10\n ? __pfx_ip6_finish_output+0x10/0x10\n NF_HOOK.constprop.0+0xc0/0x420\n ? __pfx_NF_HOOK.constprop.0+0x10/0x10\n ? ndisc_send_skb+0x2c0/0x960\n ? __pfx_lock_release+0x10/0x10\n ? __local_bh_enable_ip+0x93/0x110\n ? lock_is_held_type+0xe7/0x140\n ndisc_send_skb+0x4be/0x960\n ? __pfx_ndisc_send_skb+0x10/0x10\n ? mark_held_locks+0x65/0x90\n ? find_held_lock+0x83/0xa0\n ndisc_send_ns+0xb0/0x110\n ? __pfx_ndisc_send_ns+0x10/0x10\n addrconf_dad_work+0x631/0x8e0\n ? lock_acquire+0x180/0x3f0\n ? __pfx_addrconf_dad_work+0x10/0x10\n ? mark_held_locks+0x24/0x90\n process_one_work+0x582/0x9c0\n ? __pfx_process_one_work+0x10/0x10\n ? __pfx_do_raw_spin_lock+0x10/0x10\n ? mark_held_locks+0x24/0x90\n worker_thread+0x93/0x630\n ? __kthread_parkme+0xdc/0x100\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x1a5/0x1e0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x34/0x60\n \n---truncated---","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"vxlan: Fix nexthop hash size","id":"CVE-2023-53192","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2023"},"n_packages":0,"n_references":5,"next":{"headline":"drm/amdgpu: fix amdgpu_irq_put call trace in gmc_v10_0_hw_fini","id":"CVE-2023-53193"},"packages":[],"prev":{"headline":"irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains","id":"CVE-2023-53191"},"products":["Linux"],"published":"2025-09-15","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A flaw in the Linux kernel VXLAN module allows remote attackers to cause a system crash via an integer overflow leading to an out-of-bounds memory access.","url":"https://insights.sbomify.com/CVE-2023-53192/"}