{"answers":{"affected":"2 open source packages ship an affected version, including phpseclib/phpseclib. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-27560 in the wild and no public exploit code.","fix":"Upgrade phpseclib/phpseclib to 3.0.19 or later.","what":"CVE-2023-27560 is a high-severity denial of service vulnerability in n/a, published on 3 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-27560 and fix it if it is affected.\n\nWhat it is: CVE-2023-27560 is a high-severity denial of service vulnerability in n/a, published on 3 Mar 2023. 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-2023-27560 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- phpseclib/phpseclib (Packagist): affected from 3.0.0; fixed in 3.0.19\n- phpseclib/phpseclib (Packagist): affected from 3.0.0; fixed in 3.0.19\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-2023-27560/ (Markdown: https://insights.sbomify.com/CVE-2023-27560/index.md)","id":"CVE-2023-27560","markdown":"https://insights.sbomify.com/CVE-2023-27560/index.md","name":"CVE-2023-27560","record":{"aliases":["DEBIAN-CVE-2023-27560","GHSA-hm7p-r324-hhf3","UBUNTU-CVE-2023-27560"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP cryptography library","requires_auth":"none","summary":"An attacker can cause a denial of service via an infinite loop in the PrimeField component of the phpseclib library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"phpseclib","vendor":"phpseclib"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","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-835","name":"Loop with Unreachable Exit Condition"}],"description":"Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields.","ecosystems":["Packagist"],"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":"phpseclib Infinite Loop vulnerability","id":"CVE-2023-27560","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":2,"n_references":2,"next":{"headline":"Opencontainers runc Incorrect Authorization vulnerability","id":"CVE-2023-27561"},"packages":[{"ecosystem":"Packagist","fixed":["3.0.19"],"introduced":["3.0.0"],"last_affected":[],"package":"phpseclib/phpseclib","purl":null,"source":"GHSA-hm7p-r324-hhf3"},{"ecosystem":"Packagist","fixed":["3.0.19"],"introduced":["3.0.0"],"last_affected":[],"package":"phpseclib/phpseclib","purl":"pkg:composer/phpseclib/phpseclib","source":"GHSA-hm7p-r324-hhf3"}],"prev":{"headline":"IBM Db2 denial of service","id":"CVE-2023-27559"},"products":["n/a"],"published":"2023-03-03","related":[{"cvss_score":8.2,"headline":"phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack","id":"CVE-2026-32935","kev_date_added":null,"published":"2026-03-20"},{"cvss_score":7.5,"headline":"Name confusion in x509 Subject Alternative Name fields","id":"CVE-2023-52892","kev_date_added":null,"published":"2024-06-27"},{"cvss_score":7.5,"headline":"Phpseclib needs guardrails on large binaryfield integers","id":"CVE-2023-49316","kev_date_added":null,"published":"2023-11-27"},{"cvss_score":5.8,"headline":"phpseclib: X.509 certificate validation sends attacker-controlled outbound requests (server-side request forgery) via Authority Information Access","id":"CVE-2026-55599","kev_date_added":null,"published":"2026-06-22"},{"cvss_score":3.7,"headline":"phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()","id":"CVE-2026-40194","kev_date_added":null,"published":"2026-04-10"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-03-06","vendors":["n/a"]},"summary":"An attacker can cause a denial of service via an infinite loop in the PrimeField component of the phpseclib library.","url":"https://insights.sbomify.com/CVE-2023-27560/"}