{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-24659 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-24659 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 4 Sep 2020."},"fix_prompt":"Check this codebase for CVE-2020-24659 and fix it if it is affected.\n\nWhat it is: CVE-2020-24659 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 4 Sep 2020. \nExploitation: There is no known exploitation of CVE-2020-24659 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu 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-2020-24659/ (Markdown: https://insights.sbomify.com/CVE-2020-24659/index.md)","id":"CVE-2020-24659","markdown":"https://insights.sbomify.com/CVE-2020-24659/index.md","name":"CVE-2020-24659","record":{"aliases":["ALPINE-CVE-2020-24659","AZL-6445","DEBIAN-CVE-2020-24659","GHSA-wx7m-j6j8-xm63","JLSEC-2026-519","MGASA-2020-0379","OESA-2021-1046","RHSA-2020:5483","SUSE-SU-2020:2864-1","SUSE-SU-2020:2864-2","SUSE-SU-2020:2988-1","UBUNTU-CVE-2020-24659","USN-4491-1","openSUSE-SU-2020:1724-1","openSUSE-SU-2020:1743-1"],"analysis":null,"analysis_generated_by":null,"assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"fedora","vendor":"fedoraproject"},{"product":"gnutls","vendor":"gnu"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-787","name":"Out-of-bounds Write"},{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.","ecosystems":["Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP1","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Certifications 15 SP3","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 15","openSUSE:Leap 15.1","openSUSE:Leap 15.2"],"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":"An issue was discovered in GnuTLS before 3.6.15.","id":"CVE-2020-24659","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","fedoraproject:fedora","gnu:gnutls","opensuse:leap"],"type":null,"year":"2020"},"n_packages":24,"n_references":9,"next":{"headline":"Lack of URL normalization may lead to authorization bypass when URL access rules are used","id":"CVE-2020-24660"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-c++","purl":"pkg:rpm/redhat/gnutls-c%2B%2B","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-c++-debuginfo","purl":"pkg:rpm/redhat/gnutls-c%2B%2B-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-dane","purl":"pkg:rpm/redhat/gnutls-dane","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-dane-debuginfo","purl":"pkg:rpm/redhat/gnutls-dane-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-debuginfo","purl":"pkg:rpm/redhat/gnutls-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-debugsource","purl":"pkg:rpm/redhat/gnutls-debugsource","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-devel","purl":"pkg:rpm/redhat/gnutls-devel","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-utils","purl":"pkg:rpm/redhat/gnutls-utils","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-utils-debuginfo","purl":"pkg:rpm/redhat/gnutls-utils-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/redhat/gnutls","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-c++-debuginfo","purl":"pkg:rpm/redhat/gnutls-c%2B%2B-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-dane-debuginfo","purl":"pkg:rpm/redhat/gnutls-dane-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-debuginfo","purl":"pkg:rpm/redhat/gnutls-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-debugsource","purl":"pkg:rpm/redhat/gnutls-debugsource","source":"RHSA-2020:5483"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:3.6.14-7.el8_3"],"introduced":["0"],"last_affected":[],"package":"gnutls-utils-debuginfo","purl":"pkg:rpm/redhat/gnutls-utils-debuginfo","source":"RHSA-2020:5483"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-ESPOS","fixed":["3.6.7-6.34.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/suse/gnutls\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS","source":"SUSE-SU-2020:2988-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-LTSS","fixed":["3.6.7-6.34.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/suse/gnutls\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS","source":"SUSE-SU-2020:2988-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","fixed":["3.6.7-6.34.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/suse/gnutls\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1","source":"SUSE-SU-2020:2988-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["3.6.7-14.4.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/suse/gnutls\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2020:2864-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Certifications 15 SP3","fixed":["3.6.7-14.4.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/suse/gnutls\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Certifications%2015%20SP3","source":"SUSE-SU-2020:2864-2"},{"ecosystem":"SUSE:Linux Enterprise Server 15-LTSS","fixed":["3.6.7-6.34.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/suse/gnutls\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS","source":"SUSE-SU-2020:2988-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15","fixed":["3.6.7-6.34.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/suse/gnutls\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015","source":"SUSE-SU-2020:2988-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["3.6.7-lp151.2.21.1"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/opensuse/gnutls\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:1724-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["3.6.7-lp152.9.3.2"],"introduced":["0"],"last_affected":[],"package":"gnutls","purl":"pkg:rpm/opensuse/gnutls\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1743-1"}],"prev":{"headline":"Security feature bypass in n/a","id":"CVE-2020-24658"},"products":["n/a"],"published":"2020-09-04","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2020-24659/"}