{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-54277 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-54277 is a denial of service 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-2023-54277 and fix it if it is affected.\n\nWhat it is: CVE-2023-54277 is a denial of service 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-2023-54277 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-2023-54277/ (Markdown: https://insights.sbomify.com/CVE-2023-54277/index.md)","id":"CVE-2023-54277","markdown":"https://insights.sbomify.com/CVE-2023-54277/index.md","name":"CVE-2023-54277","record":{"aliases":["BELL-CVE-2023-54277","DEBIAN-CVE-2023-54277","GHSA-gqhr-h84m-5956","UBUNTU-CVE-2023-54277"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A missing endpoint type check in the udlfb driver allows a malicious USB device to trigger a kernel warning and potential denial of service.","user_interaction":"required","vuln_class":"denial_of_service"},"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\nfbdev: udlfb: Fix endpoint check\n\nThe syzbot fuzzer detected a problem in the udlfb driver, caused by an\nendpoint not having the expected type:\n\nusb 1-1: Read EDID byte 0 failed: -71\nusb 1-1: Unable to get valid EDID from device/display\n------------[ cut here ]------------\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880\ndrivers/usb/core/urb.c:504\nModules linked in:\nCPU: 0 PID: 9 Comm: kworker/0:1 Not tainted\n6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google\n04/28/2023\nWorkqueue: usb_hub_wq hub_event\nRIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\n...\nCall Trace:\n \u003cTASK\u003e\n dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980\n dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315\n dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111\n dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743\n\nThe current approach for this issue failed to catch the problem\nbecause it only checks for the existence of a bulk-OUT endpoint; it\ndoesn't check whether this endpoint is the one that the driver will\nactually use.\n\nWe can fix the problem by instead checking that the endpoint used by\nthe driver does exist and is bulk-OUT.","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":"fbdev: udlfb: Fix endpoint check","id":"CVE-2023-54277","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":6,"next":{"headline":"s390/vmem: split pages when debug pagealloc is enabled","id":"CVE-2023-54278"},"packages":[],"prev":{"headline":"nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net","id":"CVE-2023-54276"},"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":"2026-05-23","vendors":["Linux"]},"summary":"A missing endpoint type check in the udlfb driver allows a malicious USB device to trigger a kernel warning and potential denial of service.","url":"https://insights.sbomify.com/CVE-2023-54277/"}