{"answers":{"affected":"3 open source packages ship an affected version, including cryptography. It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-36242 in the wild and no public exploit code.","fix":"Upgrade cryptography to 3.3.2 or later.","what":"CVE-2020-36242 is a critical vulnerability in Fedoraproject Fedora, published on 7 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-36242 and fix it if it is affected.\n\nWhat it is: CVE-2020-36242 is a critical vulnerability in Fedoraproject Fedora, published on 7 Feb 2021. 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-2020-36242 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- cryptography (PyPI): affected from 3.1; fixed in 3.3.2\n- cryptography (PyPI): affected from 3.1; fixed in 3.3.2\n- cryptography (PyPI): affected from 3.1; fixed in 3.3.2\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-2020-36242/ (Markdown: https://insights.sbomify.com/CVE-2020-36242/index.md)","id":"CVE-2020-36242","markdown":"https://insights.sbomify.com/CVE-2020-36242/index.md","name":"CVE-2020-36242","record":{"aliases":["ALPINE-CVE-2020-36242","DEBIAN-CVE-2020-36242","GHSA-rhm9-p9w5-fwm7","MGASA-2021-0129","OESA-2021-1089","PYSEC-2021-63","SUSE-RU-2022:4567-1","SUSE-SU-2021:0594-1","SUSE-SU-2021:0668-1","SUSE-SU-2021:0669-1","SUSE-SU-2021:0675-1","SUSE-SU-2021:0696-1","SUSE-SU-2023:1838-1","openSUSE-SU-2021:0349-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python cryptography library","requires_auth":"none","summary":"Integer overflow in Python cryptography library allows buffer overflow during symmetric encryption, potentially leading to code execution or denial of service.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"cryptography","vendor":"cryptography.io"},{"product":"fedora","vendor":"fedoraproject"},{"product":"communications_cloud_native_core_network_function_cloud_native_environment","vendor":"oracle"}],"cvss":{"score":9.1,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.","ecosystems":["PyPI","SUSE:Enterprise Storage 6","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Public Cloud 15 SP1","SUSE:Linux Enterprise Module for Public Cloud 15 SP2","SUSE:Linux Enterprise Module for Public Cloud 15 SP3","SUSE:Linux Enterprise Module for Public Cloud 15 SP4","SUSE:Linux Enterprise Module for Python 2 15 SP2","SUSE:Linux Enterprise Server 12 SP2-BCL","SUSE:Linux Enterprise Server 12 SP2-LTSS","SUSE:Linux Enterprise Server 12 SP3-BCL","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server 12 SP4-LTSS","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server 15 SP1-BCL","SUSE:Linux Enterprise Server 15 SP1-LTSS","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP2","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 12 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15","SUSE:Linux Enterprise Server for SAP Applications 15 SP1","SUSE:Manager Proxy 4.0","SUSE:Manager Retail Branch Server 4.0","SUSE:Manager Server 4.0","SUSE:OpenStack Cloud 7","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.2","openSUSE:Leap 15.4"],"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":"PyCA Cryptography symmetrically encrypting large values can lead to integer overflow","id":"CVE-2020-36242","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"fedoraproject:fedora","products":["fedoraproject:fedora"],"type":"integer_overflow","year":"2020"},"n_packages":1144,"n_references":6,"next":{"headline":"Command injection in n/a","id":"CVE-2020-36243"},"packages":[{"ecosystem":"PyPI","fixed":["3.3.2"],"introduced":["3.1"],"last_affected":[],"package":"cryptography","purl":null,"source":"GHSA-rhm9-p9w5-fwm7"},{"ecosystem":"PyPI","fixed":["3.3.2"],"introduced":["3.1"],"last_affected":[],"package":"cryptography","purl":"pkg:pypi/cryptography","source":"GHSA-rhm9-p9w5-fwm7"},{"ecosystem":"PyPI","fixed":["3.3.2"],"introduced":["3.1"],"last_affected":[],"package":"cryptography","purl":"pkg:pypi/cryptography","source":"PYSEC-2021-63"},{"ecosystem":"SUSE:Enterprise Storage 6","fixed":["3.1.4-150100.6.2.1"],"introduced":["0"],"last_affected":[],"package":"python-bcrypt","purl":"pkg:rpm/suse/python-bcrypt\u0026distro=SUSE%20Enterprise%20Storage%206","source":"SUSE-RU-2022:4567-1"},{"ecosystem":"SUSE:Enterprise Storage 6","fixed":["1.15.0-150000.4.11.2"],"introduced":["0"],"last_affected":[],"package":"python-cffi","purl":"pkg:rpm/suse/python-cffi\u0026distro=SUSE%20Enterprise%20Storage%206","source":"SUSE-RU-2022:4567-1"},{"ecosystem":"SUSE:Enterprise Storage 6","fixed":["2.1.4-4.9.2"],"introduced":["0"],"last_affected":[],"package":"python-cryptography","purl":"pkg:rpm/suse/python-cryptography\u0026distro=SUSE%20Enterprise%20Storage%206","source":"SUSE-SU-2021:0696-1"},{"ecosystem":"SUSE:Enterprise Storage 6","fixed":["2.9.2-150100.7.8.2"],"introduced":["0"],"last_affected":[],"package":"python-cryptography","purl":"pkg:rpm/suse/python-cryptography\u0026distro=SUSE%20Enterprise%20Storage%206","source":"SUSE-RU-2022:4567-1"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["2.0.3-3.10.1"],"introduced":["0"],"last_affected":[],"package":"python-cryptography","purl":"pkg:rpm/suse/python-cryptography\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2021:0669-1"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["2.1.4-7.34.1"],"introduced":["0"],"last_affected":[],"package":"python-cryptography","purl":"pkg:rpm/suse/python-cryptography\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2021:0675-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","fixed":["2.1.4-4.9.2"],"introduced":["0"],"last_affected":[],"package":"python-cryptography","purl":"pkg:rpm/suse/python-cryptography\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS","source":"SUSE-SU-2021:0696-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 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SP2","fixed":["2.8-3.6.1"],"introduced":["0"],"last_affected":[],"package":"python-cryptography","purl":"pkg:rpm/suse/python-cryptography\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2021:0594-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 SP1","fixed":["1.0.0-150100.3.7.4"],"introduced":["0"],"last_affected":[],"package":"python-aliyun-python-sdk","purl":"pkg:rpm/suse/python-aliyun-python-sdk\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP1","source":"SUSE-SU-2023:1838-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 SP1","fixed":["2.1.1-150100.3.5.5"],"introduced":["0"],"last_affected":[],"package":"python-aliyun-python-sdk-aas","purl":"pkg:rpm/suse/python-aliyun-python-sdk-aas\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP1","source":"SUSE-SU-2023:1838-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 15 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dereference with pkcs12.serialize_key_and_certificates when called with a non-matching certificate and private key and an hmac_hash override","id":"CVE-2024-26130","kev_date_added":null,"published":"2024-02-21"},{"cvss_score":7.5,"headline":"cryptography mishandles SSH certificates","id":"CVE-2023-38325","kev_date_added":null,"published":"2023-07-14"},{"cvss_score":6.9,"headline":"cryptography has a buffer overflow if non-contiguous buffers were passed to APIs","id":"CVE-2026-39892","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":5.9,"headline":"cryptography vulnerable to NULL-dereference when loading PKCS7 certificates","id":"CVE-2023-49083","kev_date_added":null,"published":"2023-11-29"},{"cvss_score":5.9,"headline":"RSA decryption vulnerable to Bleichenbacher timing vulnerability","id":"CVE-2020-25659","kev_date_added":null,"published":"2021-01-11"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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":"Integer overflow in Python cryptography library allows buffer overflow during symmetric encryption, potentially leading to code execution or denial of service.","url":"https://insights.sbomify.com/CVE-2020-36242/"}