{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2022-50859 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-50859 is a vulnerability in Linux, published on 30 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-2022-50859 and fix it if it is affected.\n\nWhat it is: CVE-2022-50859 is a vulnerability in Linux, published on 30 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-2022-50859 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-2022-50859/ (Markdown: https://insights.sbomify.com/CVE-2022-50859/index.md)","id":"CVE-2022-50859","markdown":"https://insights.sbomify.com/CVE-2022-50859/index.md","name":"CVE-2022-50859","record":{"aliases":["DEBIAN-CVE-2022-50859","GHSA-4fwr-9cpg-j96h","UBUNTU-CVE-2022-50859"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel CIFS","requires_auth":"none","summary":"An attacker can read uninitialized memory from the network via a malformed CIFS negotiate message, potentially leaking sensitive kernel data.","user_interaction":"not_required","vuln_class":"information_disclosure"},"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\ncifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message\n\nCommit d5c7076b772a (\"smb3: add smb3.1.1 to default dialect list\")\nextend the dialects from 3 to 4, but forget to decrease the extended\nlength when specific the dialect, then the message length is larger\nthan expected.\n\nThis maybe leak some info through network because not initialize the\nmessage body.\n\nAfter apply this patch, the VALIDATE_NEGOTIATE_INFO message length is\nreduced from 28 bytes to 26 bytes.","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":"cifs: Fix the error length of VALIDATE_NEGOTIATE_INFO message","id":"CVE-2022-50859","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2022"},"n_packages":0,"n_references":6,"next":{"headline":"apparmor: Fix memleak in alloc_ns()","id":"CVE-2022-50860"},"packages":[],"prev":{"headline":"mmc: alcor: fix return value check of mmc_add_host()","id":"CVE-2022-50858"},"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":"An attacker can read uninitialized memory from the network via a malformed CIFS negotiate message, potentially leaking sensitive kernel data.","url":"https://insights.sbomify.com/CVE-2022-50859/"}