{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2023-6693 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-6693 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 2 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-6693 and fix it if it is affected.\n\nWhat it is: CVE-2023-6693 is a medium-severity memory corruption vulnerability in Fedoraproject Fedora, published on 2 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-6693 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. 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-2023-6693/ (Markdown: https://insights.sbomify.com/CVE-2023-6693/index.md)","id":"CVE-2023-6693","markdown":"https://insights.sbomify.com/CVE-2023-6693/index.md","name":"CVE-2023-6693","record":{"aliases":["AZL-35675","AZL-35676","BELL-CVE-2023-6693","CLSA-2026-1779097389","DEBIAN-CVE-2023-6693","GHSA-835p-c6x8-xh5f","UBUNTU-CVE-2023-6693","openSUSE-SU-2024:13705-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_read","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"QEMU virtualization","requires_auth":"none","summary":"A stack buffer overflow in QEMU's virtio-net device allows guest users to leak memory or potentially execute code when specific features are enabled.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"qemu","vendor":"qemu"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":4.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.","ecosystems":["openSUSE:Tumbleweed"],"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":"Qemu: virtio-net: stack buffer overflow in virtio_net_flush_tx()","id":"CVE-2023-6693","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","qemu:qemu","redhat:enterprise_linux"],"type":"memory_corruption","year":"2023"},"n_packages":1,"n_references":4,"next":{"headline":"Beaver Themer \u003c= 1.4.9 - Authenticated(Contributor+) Stored Cross-Site Scripting via shortcode","id":"CVE-2023-6694"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["8.2.1-1.1"],"introduced":["0"],"last_affected":[],"package":"qemu","purl":"pkg:rpm/opensuse/qemu\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:13705-1"}],"prev":{"headline":"Cross-site scripting in Ultimate Blocks – 25+ Gutenberg Blocks for Block Editor","id":"CVE-2023-6692"},"products":["Red Hat Enterprise Linux 6","Red Hat Enterprise Linux 7","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 8 Advanced Virtualization","Red Hat Enterprise Linux 9"],"published":"2024-01-02","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-02-25","vendors":["Red Hat"]},"summary":"A stack buffer overflow in QEMU's virtio-net device allows guest users to leak memory or potentially execute code when specific features are enabled.","url":"https://insights.sbomify.com/CVE-2023-6693/"}