{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-39976 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2023-39976 is a critical memory corruption vulnerability in n/a, published on 8 Aug 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-2023-39976 and fix it if it is affected.\n\nWhat it is: CVE-2023-39976 is a critical memory corruption vulnerability in n/a, published on 8 Aug 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-2023-39976 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-2023-39976/ (Markdown: https://insights.sbomify.com/CVE-2023-39976/index.md)","id":"CVE-2023-39976","markdown":"https://insights.sbomify.com/CVE-2023-39976/index.md","name":"CVE-2023-39976","record":{"aliases":["ALSA-2023:6578","AZL-27859","AZL-36957","CLSA-2025-1762182516","CLSA-2026-1791385137","DEBIAN-CVE-2023-39976","GHSA-4fvg-53ww-3r5g","MGASA-2023-0339","RHSA-2023:5597","RHSA-2023:6578","RHSA-2023:7376","SUSE-SU-2023:3727-1","SUSE-SU-2023:3728-1","SUSE-SU-2023:3897-1","SUSE-SU-2023:3944-1","UBUNTU-CVE-2023-39976","USN-6308-1","openSUSE-SU-2024:13450-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"libqb logging library","requires_auth":"none","summary":"A buffer overflow in libqb allows attackers to execute arbitrary code or cause denial of service via long log messages.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"libqb","vendor":"clusterlabs"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"log_blackbox.c in libqb before 2.0.8 allows a buffer overflow via long log messages because the header size is not considered.","ecosystems":["AlmaLinux:9","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::highavailability","Red Hat:enterprise_linux:9::resilientstorage","Red Hat:rhel_eus:9.0::appstream","Red Hat:rhel_eus:9.0::highavailability","Red Hat:rhel_eus:9.0::resilientstorage","Red Hat:rhel_eus:9.2::appstream","Red Hat:rhel_eus:9.2::highavailability","Red Hat:rhel_eus:9.2::resilientstorage","SUSE:Linux Enterprise High Availability Extension 15 SP1","SUSE:Linux Enterprise High Availability Extension 15 SP2","SUSE:Linux Enterprise High Availability Extension 15 SP3","SUSE:Linux Enterprise High Availability Extension 15 SP4","SUSE:Linux Enterprise High Availability Extension 15 SP5","SUSE:Linux Enterprise Module for Basesystem 15 SP4","SUSE:Linux Enterprise Module for Basesystem 15 SP5","openSUSE:Leap 15.4","openSUSE:Leap 15.5"],"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":"Memory corruption in n/a","id":"CVE-2023-39976","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":57,"n_references":4,"next":{"headline":"Denial of service in n/a","id":"CVE-2023-39978"},"packages":[{"ecosystem":"AlmaLinux:9","fixed":["2.0.6-4.el9_3"],"introduced":["0"],"last_affected":[],"package":"libqb","purl":"pkg:rpm/almalinux/libqb","source":"ALSA-2023:6578"},{"ecosystem":"AlmaLinux:9","fixed":["2.0.6-4.el9_3"],"introduced":["0"],"last_affected":[],"package":"libqb-devel","purl":"pkg:rpm/almalinux/libqb-devel","source":"ALSA-2023:6578"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.0.6-4.el9_3"],"introduced":["0"],"last_affected":[],"package":"doxygen2man-debuginfo","purl":"pkg:rpm/redhat/doxygen2man-debuginfo","source":"RHSA-2023:6578"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:2.0.6-4.el9_3"],"introduced":["0"],"last_affected":[],"package":"libqb","purl":"pkg:rpm/redhat/libqb","source":"RHSA-2023:6578"},{"ecosystem":"Red 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Hat:rhel_eus:9.2::appstream","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"doxygen2man-debuginfo","purl":"pkg:rpm/redhat/doxygen2man-debuginfo","source":"RHSA-2023:7376"},{"ecosystem":"Red Hat:rhel_eus:9.2::appstream","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"libqb","purl":"pkg:rpm/redhat/libqb","source":"RHSA-2023:7376"},{"ecosystem":"Red Hat:rhel_eus:9.2::appstream","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"libqb-debuginfo","purl":"pkg:rpm/redhat/libqb-debuginfo","source":"RHSA-2023:7376"},{"ecosystem":"Red Hat:rhel_eus:9.2::appstream","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"libqb-debugsource","purl":"pkg:rpm/redhat/libqb-debugsource","source":"RHSA-2023:7376"},{"ecosystem":"Red Hat:rhel_eus:9.2::appstream","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"libqb-tests-debuginfo","purl":"pkg:rpm/redhat/libqb-tests-debuginfo","source":"RHSA-2023:7376"},{"ecosystem":"Red Hat:rhel_eus:9.2::highavailability","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"doxygen2man-debuginfo","purl":"pkg:rpm/redhat/doxygen2man-debuginfo","source":"RHSA-2023:7376"},{"ecosystem":"Red Hat:rhel_eus:9.2::highavailability","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"libqb-debuginfo","purl":"pkg:rpm/redhat/libqb-debuginfo","source":"RHSA-2023:7376"},{"ecosystem":"Red Hat:rhel_eus:9.2::highavailability","fixed":["0:2.0.6-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"libqb-debugsource","purl":"pkg:rpm/redhat/libqb-debugsource","source":"RHSA-2023:7376"}],"prev":{"headline":"Use after free in n/a","id":"CVE-2023-39975"},"products":["n/a"],"published":"2023-08-08","related":[{"cvss_score":7.1,"headline":"Path traversal in n/a","id":"CVE-2019-12779","kev_date_added":null,"published":"2019-06-07"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"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":"total"},"state":"PUBLISHED","updated":"2024-10-15","vendors":["n/a"]},"summary":"A buffer overflow in libqb allows attackers to execute arbitrary code or cause denial of service via long log messages.","url":"https://insights.sbomify.com/CVE-2023-39976/"}