{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3436 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2023-3436 is a low-severity denial of service vulnerability in Xpdfreader Xpdf, published on 27 Jun 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-2023-3436 and fix it if it is affected.\n\nWhat it is: CVE-2023-3436 is a low-severity denial of service vulnerability in Xpdfreader Xpdf, published on 27 Jun 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3436 exists.\n\nAffected product: Xpdfreader Xpdf. 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-2023-3436/ (Markdown: https://insights.sbomify.com/CVE-2023-3436/index.md)","id":"CVE-2023-3436","markdown":"https://insights.sbomify.com/CVE-2023-3436/index.md","name":"CVE-2023-3436","record":{"aliases":["GHSA-whpq-78mq-qcj6","UBUNTU-CVE-2023-3436"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"PDF viewer","requires_auth":"none","summary":"An attacker can cause a deadlock in Xpdf by crafting a PDF with nested object stream references, leading to application unresponsiveness.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GandC","cpe":[{"product":"xpdf","vendor":"xpdfreader"}],"cvss":{"score":3.3,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-667","name":"Improper Locking"},{"id":"CWE-833","name":"Deadlock"}],"description":"Xpdf 4.04 will deadlock on a PDF object stream whose \"Length\" field is itself in another object stream.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Deadlock in Xpdf 4.04 due to PDF object stream references","id":"CVE-2023-3436","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"xpdfreader:xpdf","products":["xpdfreader:xpdf"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2023-3437"},"packages":[],"prev":{"headline":"User Activity Log \u003c 1.6.5 - Unauthenticated SQLi","id":"CVE-2023-3435"},"products":["Xpdf"],"published":"2023-06-27","related":[{"cvss_score":7.8,"headline":"Null dereference in n/a","id":"CVE-2022-38928","kev_date_added":null,"published":"2022-09-21"},{"cvss_score":7.8,"headline":"Use after free in n/a","id":"CVE-2022-38222","kev_date_added":null,"published":"2022-08-15"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2022-33108","kev_date_added":null,"published":"2022-06-28"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2022-30524","kev_date_added":null,"published":"2022-05-09"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2020-24996","kev_date_added":null,"published":"2020-09-03"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2020-24999","kev_date_added":null,"published":"2020-09-03"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2019-9877","kev_date_added":null,"published":"2019-03-19"}],"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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-07","vendors":["Xpdf"]},"summary":"An attacker can cause a deadlock in Xpdf by crafting a PDF with nested object stream references, leading to application unresponsiveness.","url":"https://insights.sbomify.com/CVE-2023-3436/"}