{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-25767 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-25767 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-25767 is a high-severity denial of service vulnerability in n/a, published on 18 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-25767 and fix it if it is affected.\n\nWhat it is: CVE-2020-25767 is a high-severity denial of service vulnerability in n/a, published on 18 Aug 2021. 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-2020-25767 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2020-25767/ (Markdown: https://insights.sbomify.com/CVE-2020-25767/index.md)","id":"CVE-2020-25767","markdown":"https://insights.sbomify.com/CVE-2020-25767/index.md","name":"CVE-2020-25767","record":{"aliases":["GHSA-2hg5-gxv6-8v58"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Embedded TCP/IP stack","requires_auth":"none","summary":"Attackers can cause a denial of service in HCC Embedded NicheStack IPv4 by sending crafted DNS packets with invalid compression pointers.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"nichestack_ipv4","vendor":"hcc-embedded"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnc_copy_in routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet (e.g., forward compression pointer jumps are allowed), which leads to an Out-of-bounds Read, and a Denial-of-Service as a consequence.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Denial of service in n/a","id":"CVE-2020-25767","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Contao Insert tag injection in forms","id":"CVE-2020-25768"},"packages":[],"prev":{"headline":"Cross-site request forgery in n/a","id":"CVE-2020-25766"},"products":["n/a"],"published":"2021-08-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can cause a denial of service in HCC Embedded NicheStack IPv4 by sending crafted DNS packets with invalid compression pointers.","url":"https://insights.sbomify.com/CVE-2020-25767/"}