{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54299 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54299 is a vulnerability in Linux, published on 30 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2023-54299 and fix it if it is affected.\n\nWhat it is: CVE-2023-54299 is a vulnerability in Linux, published on 30 Dec 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2023-54299 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2023-54299/ (Markdown: https://insights.sbomify.com/CVE-2023-54299/index.md)","id":"CVE-2023-54299","markdown":"https://insights.sbomify.com/CVE-2023-54299/index.md","name":"CVE-2023-54299","record":{"aliases":["BELL-CVE-2023-54299","DEBIAN-CVE-2023-54299","GHSA-4784-9v76-jqjx","UBUNTU-CVE-2023-54299"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB","requires_auth":"none","summary":"A local attacker with physical access can cause a kernel crash via a null pointer dereference in the USB Type-C subsystem during specific data role swaps.","user_interaction":"required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: bus: verify partner exists in typec_altmode_attention\n\nSome usb hubs will negotiate DisplayPort Alt mode with the device\nbut will then negotiate a data role swap after entering the alt\nmode. The data role swap causes the device to unregister all alt\nmodes, however the usb hub will still send Attention messages\neven after failing to reregister the Alt Mode. type_altmode_attention\ncurrently does not verify whether or not a device's altmode partner\nexists, which results in a NULL pointer error when dereferencing\nthe typec_altmode and typec_altmode_ops belonging to the altmode\npartner.\n\nVerify the presence of a device's altmode partner before sending\nthe Attention message to the Alt Mode driver.","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":"usb: typec: bus: verify partner exists in typec_altmode_attention","id":"CVE-2023-54299","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2023"},"n_packages":0,"n_references":7,"next":{"headline":"wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx","id":"CVE-2023-54300"},"packages":[],"prev":{"headline":"thermal: intel: quark_dts: fix error pointer dereference","id":"CVE-2023-54298"},"products":["Linux"],"published":"2025-12-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A local attacker with physical access can cause a kernel crash via a null pointer dereference in the USB Type-C subsystem during specific data role swaps.","url":"https://insights.sbomify.com/CVE-2023-54299/"}