{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-23456 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-23456 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 12 Jan 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-2023-23456 and fix it if it is affected.\n\nWhat it is: CVE-2023-23456 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 12 Jan 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-2023-23456 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. 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-2023-23456/ (Markdown: https://insights.sbomify.com/CVE-2023-23456/index.md)","id":"CVE-2023-23456","markdown":"https://insights.sbomify.com/CVE-2023-23456/index.md","name":"CVE-2023-23456","record":{"aliases":["DEBIAN-CVE-2023-23456","DLA-3991-1","GHSA-3j7g-922g-j6r3","UBUNTU-CVE-2023-23456"],"analysis":{"component_type":"developer_tool","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"UPX executable packer","requires_auth":"none","summary":"An attacker can cause a denial of service via a crafted file due to a heap-based buffer overflow in the UPX executable packer.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"fedora","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"upx","vendor":"upx"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.","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":"Upx: heap-buffer-overflow in packtmt::pack()","id":"CVE-2023-23456","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora"],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":5,"next":{"headline":"Upx: segv on packlinuxelf64::invert_pt_dynamic() in p_lx_elf.cpp","id":"CVE-2023-23457"},"packages":[],"prev":{"headline":"Denial of service in n/a","id":"CVE-2023-23455"},"products":["fedoraproject:fedora","upx:upx"],"published":"2023-01-12","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-12-11","vendors":["fedoraproject","upx"]},"summary":"An attacker can cause a denial of service via a crafted file due to a heap-based buffer overflow in the UPX executable packer.","url":"https://insights.sbomify.com/CVE-2023-23456/"}