{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-52907 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-52907 is a high-severity use after free vulnerability in Linux kernel, published on 21 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-52907 and fix it if it is affected.\n\nWhat it is: CVE-2023-52907 is a high-severity use after free vulnerability in Linux kernel, published on 21 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-52907 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-2023-52907/ (Markdown: https://insights.sbomify.com/CVE-2023-52907/index.md)","id":"CVE-2023-52907","markdown":"https://insights.sbomify.com/CVE-2023-52907/index.md","name":"CVE-2023-52907","record":{"aliases":["BELL-CVE-2023-52907","DEBIAN-CVE-2023-52907","GHSA-hm5h-pgjm-xwqc","UBUNTU-CVE-2023-52907"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel NFC driver","requires_auth":"low_privilege","summary":"A use-after-free in the Linux kernel NFC driver allows attackers to cause denial of service or execute code via USB interactions.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()\n\nFix a use-after-free that occurs in hcd when in_urb sent from\npn533_usb_send_frame() is completed earlier than out_urb. Its callback\nfrees the skb data in pn533_send_async_complete() that is used as a\ntransfer buffer of out_urb. Wait before sending in_urb until the\ncallback of out_urb is called. To modify the callback of out_urb alone,\nseparate the complete function of out_urb and ack_urb.\n\nFound by a modified version of syzkaller.\n\nBUG: KASAN: use-after-free in dummy_timer\nCall Trace:\n memcpy (mm/kasan/shadow.c:65)\n dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352)\n transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453)\n dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972)\n arch_static_branch (arch/x86/include/asm/jump_label.h:27)\n static_key_false (include/linux/jump_label.h:207)\n timer_expire_exit (include/trace/events/timer.h:127)\n call_timer_fn (kernel/time/timer.c:1475)\n expire_timers (kernel/time/timer.c:1519)\n __run_timers (kernel/time/timer.c:1790)\n run_timer_softirq (kernel/time/timer.c:1803)","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":"nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()","id":"CVE-2023-52907","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2023"},"n_packages":0,"n_references":7,"next":{"headline":"drm/amdgpu: Fix potential NULL dereference","id":"CVE-2023-52908"},"packages":[],"prev":{"headline":"net/sched: act_mpls: Fix warning during failed attribute validation","id":"CVE-2023-52906"},"products":["Linux"],"published":"2024-08-21","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A use-after-free in the Linux kernel NFC driver allows attackers to cause denial of service or execute code via USB interactions.","url":"https://insights.sbomify.com/CVE-2023-52907/"}