{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-27818 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-27818 is a low-severity denial of service vulnerability in Debian Debian Linux, published on 8 Dec 2020. 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-2020-27818 and fix it if it is affected.\n\nWhat it is: CVE-2020-27818 is a low-severity denial of service vulnerability in Debian Debian Linux, published on 8 Dec 2020. 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-2020-27818 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2020-27818/ (Markdown: https://insights.sbomify.com/CVE-2020-27818/index.md)","id":"CVE-2020-27818","markdown":"https://insights.sbomify.com/CVE-2020-27818/index.md","name":"CVE-2020-27818","record":{"aliases":["DEBIAN-CVE-2020-27818","DLA-3032-1","GHSA-xjm9-9gr6-gcpx","UBUNTU-CVE-2020-27818","openSUSE-SU-2020:2177-1","openSUSE-SU-2020:2198-1","openSUSE-SU-2020:2220-1","openSUSE-SU-2020:2227-1","openSUSE-SU-2024:11176-1"],"analysis":{"component_type":"developer_tool","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"PNG validation tool","requires_auth":"none","summary":"An attacker can cause a temporary denial of service in pngcheck by providing a malicious file, affecting application availability.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"extra_packages_for_enterprise_linux","vendor":"fedoraproject"},{"product":"fedora","vendor":"fedoraproject"},{"product":"pngcheck","vendor":"libpng"}],"cvss":{"score":3.3,"severity":"low","source":"nvd","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-125","name":"Out-of-bounds Read"},{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.","ecosystems":["SUSE:Package Hub 15 SP1","SUSE:Package Hub 15 SP2","openSUSE:Leap 15.1","openSUSE:Leap 15.2","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2025-01-19","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-01-19T18:33:13Z","kind":"github_poc","ref":"https://github.com/13m0n4de/pngcheck-vulns","stars":0,"title":"A repository of proof-of-concept files demonstrating disclosed and patched vulnerabilities in pngcheck (2.4.0 - 3.0.1), including CVE-2020-27818, CVE-2020-35511 and other vulns."}],"tier":"poc_unverified"},"has_fix":true,"headline":"Denial of service in pngcheck","id":"CVE-2020-27818","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:extra_packages_for_enterprise_linux","fedoraproject:fedora"],"type":"denial_of_service","year":"2020"},"n_packages":5,"n_references":8,"next":{"headline":"Null dereference in libxls","id":"CVE-2020-27819"},"packages":[{"ecosystem":"SUSE:Package Hub 15 SP1","fixed":["2.3.0-bp151.4.3.1"],"introduced":["0"],"last_affected":[],"package":"pngcheck","purl":"pkg:rpm/suse/pngcheck\u0026distro=SUSE%20Package%20Hub%2015%20SP1","source":"openSUSE-SU-2020:2227-1"},{"ecosystem":"SUSE:Package Hub 15 SP2","fixed":["2.3.0-bp152.4.3.1"],"introduced":["0"],"last_affected":[],"package":"pngcheck","purl":"pkg:rpm/suse/pngcheck\u0026distro=SUSE%20Package%20Hub%2015%20SP2","source":"openSUSE-SU-2020:2220-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["2.3.0-lp151.3.3.1"],"introduced":["0"],"last_affected":[],"package":"pngcheck","purl":"pkg:rpm/opensuse/pngcheck\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:2198-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["2.3.0-lp152.4.3.1"],"introduced":["0"],"last_affected":[],"package":"pngcheck","purl":"pkg:rpm/opensuse/pngcheck\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:2177-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.0.0-1.7"],"introduced":["0"],"last_affected":[],"package":"pngcheck","purl":"pkg:rpm/opensuse/pngcheck\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:11176-1"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2020-27817"},"products":["pngcheck"],"published":"2020-12-08","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"An attacker can cause a temporary denial of service in pngcheck by providing a malicious file, affecting application availability.","url":"https://insights.sbomify.com/CVE-2020-27818/"}