{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-53839 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-53839 is a vulnerability in Linux, published on 9 Dec 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-2023-53839 and fix it if it is affected.\n\nWhat it is: CVE-2023-53839 is a vulnerability in Linux, published on 9 Dec 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-2023-53839 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-2023-53839/ (Markdown: https://insights.sbomify.com/CVE-2023-53839/index.md)","id":"CVE-2023-53839","markdown":"https://insights.sbomify.com/CVE-2023-53839/index.md","name":"CVE-2023-53839","record":{"aliases":["BELL-CVE-2023-53839","DEBIAN-CVE-2023-53839","GHSA-8252-q96p-5jpg","UBUNTU-CVE-2023-53839"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A data race in the Linux kernel DCCP protocol allows attackers to cause a denial of service by triggering inconsistent MSS cache reads.","user_interaction":"not_required","vuln_class":"race_condition"},"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\ndccp: fix data-race around dp-\u003edccps_mss_cache\n\ndccp_sendmsg() reads dp-\u003edccps_mss_cache before locking the socket.\nSame thing in do_dccp_getsockopt().\n\nAdd READ_ONCE()/WRITE_ONCE() annotations,\nand change dccp_sendmsg() to check again dccps_mss_cache\nafter socket is locked.","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":"dccp: fix data-race around dp-\u003edccps_mss_cache","id":"CVE-2023-53839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2023"},"n_packages":0,"n_references":8,"next":{"headline":"usb: early: xhci-dbc: Fix a potential out-of-bound memory access","id":"CVE-2023-53840"},"packages":[],"prev":{"headline":"f2fs: synchronize atomic write aborts","id":"CVE-2023-53838"},"products":["Linux"],"published":"2025-12-09","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 data race in the Linux kernel DCCP protocol allows attackers to cause a denial of service by triggering inconsistent MSS cache reads.","url":"https://insights.sbomify.com/CVE-2023-53839/"}