{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-13895 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-13895 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-13895 is a high-severity vulnerability in n/a, published on 7 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-13895 and fix it if it is affected.\n\nWhat it is: CVE-2020-13895 is a high-severity vulnerability in n/a, published on 7 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-13895 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-2020-13895/ (Markdown: https://insights.sbomify.com/CVE-2020-13895/index.md)","id":"CVE-2020-13895","markdown":"https://insights.sbomify.com/CVE-2020-13895/index.md","name":"CVE-2020-13895","record":{"aliases":["GHSA-jxxc-m3fj-q52w"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Perl ECDSA library","requires_auth":"none","summary":"The Crypt::Perl library fails to properly verify ECDSA signatures with small r/s values, potentially allowing signature verification bypass.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"p5-crypt-perl","vendor":"p5-crypt-perl_project"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Crypt::Perl::ECDSA in the Crypt::Perl (aka p5-Crypt-Perl) module before 0.32 for Perl fails to verify correct ECDSA signatures when r and s are small and when s = 1. This happens when using the curve secp256r1 (prime256v1). This could conceivably have a security-relevant impact if an attacker wishes to use public r and s values when guessing whether signature verification will fail.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Other in n/a","id":"CVE-2020-13895","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Information disclosure in n/a","id":"CVE-2020-13896"},"packages":[],"prev":{"headline":"Path traversal in n/a","id":"CVE-2020-13894"},"products":["n/a"],"published":"2020-06-07","related":[{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2020-17478","kev_date_added":null,"published":"2020-08-10"}],"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":"The Crypt::Perl library fails to properly verify ECDSA signatures with small r/s values, potentially allowing signature verification bypass.","url":"https://insights.sbomify.com/CVE-2020-13895/"}