{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20274 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-20274 is a high-severity vulnerability in privoxy, published on 9 Mar 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-2021-20274 and fix it if it is affected.\n\nWhat it is: CVE-2021-20274 is a high-severity vulnerability in privoxy, published on 9 Mar 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-2021-20274 in the wild and no public exploit code.\n\nAffected product: privoxy. 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-2021-20274/ (Markdown: https://insights.sbomify.com/CVE-2021-20274/index.md)","id":"CVE-2021-20274","markdown":"https://insights.sbomify.com/CVE-2021-20274/index.md","name":"CVE-2021-20274","record":{"aliases":["ALPINE-CVE-2021-20274","DEBIAN-CVE-2021-20274","GHSA-g899-mr4g-v86j"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Privoxy proxy server","requires_auth":"none","summary":"A NULL-pointer dereference in Privoxy allows a malicious SOCKS server to crash the proxy, causing denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"privoxy","vendor":"privoxy"}],"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-476","name":"NULL Pointer Dereference"}],"description":"A flaw was found in privoxy before 3.0.32. A crash may occur due a NULL-pointer dereference when the socks server misbehaves.","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":"Null dereference in privoxy","id":"CVE-2021-20274","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"A flaw was found in privoxy before 3.0.32.","id":"CVE-2021-20275"},"packages":[],"prev":{"headline":"Denial of service in privoxy","id":"CVE-2021-20273"},"products":["privoxy"],"published":"2021-03-09","related":[{"cvss_score":7.7,"headline":"Local privilege escalation from user privoxy to root","id":"CVE-2019-3699","kev_date_added":null,"published":"2020-01-24"},{"cvss_score":7.5,"headline":"Denial of service in Privoxy","id":"CVE-2021-44540","kev_date_added":null,"published":"2021-12-23"},{"cvss_score":7.5,"headline":"Denial of service in Privoxy","id":"CVE-2021-44541","kev_date_added":null,"published":"2021-12-23"},{"cvss_score":7.5,"headline":"Denial of service in Privoxy","id":"CVE-2021-44542","kev_date_added":null,"published":"2021-12-23"},{"cvss_score":7.5,"headline":"Denial of service in privoxy","id":"CVE-2021-20209","kev_date_added":null,"published":"2021-05-25"},{"cvss_score":7.5,"headline":"Denial of service in privoxy","id":"CVE-2020-35502","kev_date_added":null,"published":"2021-03-25"},{"cvss_score":7.5,"headline":"Denial of service in privoxy","id":"CVE-2021-20210","kev_date_added":null,"published":"2021-03-25"}],"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":"2024-08-03","vendors":["n/a"]},"summary":"A NULL-pointer dereference in Privoxy allows a malicious SOCKS server to crash the proxy, causing denial of service.","url":"https://insights.sbomify.com/CVE-2021-20274/"}