{"answers":{"affected":"1 open source package ship an affected version, including wireguard. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-35838 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-35838 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-35838 is a medium-severity vulnerability in n/a, published on 9 Aug 2023. 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-2023-35838 and fix it if it is affected.\n\nWhat it is: CVE-2023-35838 is a medium-severity vulnerability in n/a, published on 9 Aug 2023. 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-2023-35838 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- wireguard (PyPI): affected all versions up to 0.5.3; no fix listed\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-2023-35838/ (Markdown: https://insights.sbomify.com/CVE-2023-35838/index.md)","id":"CVE-2023-35838","markdown":"https://insights.sbomify.com/CVE-2023-35838/index.md","name":"CVE-2023-35838","record":{"aliases":["GHSA-q424-r5hc-33qq","PYSEC-2023-321","UBUNTU-CVE-2023-35838"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"WireGuard VPN client","requires_auth":"none","summary":"An attacker can trick WireGuard users into blocking traffic to specific non-RFC1918 IP addresses, causing a denial of service for those services.","user_interaction":"required","vuln_class":"misconfiguration"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"wireguard","vendor":"wireguard"}],"cvss":{"score":5.7,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-610","name":"Externally Controlled Reference to a Resource in Another Sphere"}],"description":"The WireGuard client 0.5.3 on Windows insecurely configures the operating system and firewall such that traffic to a local network that uses non-RFC1918 IP addresses is blocked. This allows an adversary to trick the victim into blocking IP traffic to selected IP addresses and services even while the VPN is enabled. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to \"LocalNet attack resulting in the blocking of traffic\" rather than to only WireGuard.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Misconfiguration in n/a","id":"CVE-2023-35838","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"misconfiguration","year":"2023"},"n_packages":1,"n_references":3,"next":{"headline":"Solon vulnerable to deserialization of untrusted data","id":"CVE-2023-35839"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.5.3"],"package":"wireguard","purl":"pkg:pypi/wireguard","source":"PYSEC-2023-321"}],"prev":{"headline":"Hardcoded credentials in n/a","id":"CVE-2023-35837"},"products":["n/a"],"published":"2023-08-09","related":[{"cvss_score":5.3,"headline":"Race condition in n/a","id":"CVE-2021-46873","kev_date_added":null,"published":"2023-01-29"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2024-10-18","vendors":["n/a"]},"summary":"An attacker can trick WireGuard users into blocking traffic to specific non-RFC1918 IP addresses, causing a denial of service for those services.","url":"https://insights.sbomify.com/CVE-2023-35838/"}