{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2023-3255 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-3255 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 13 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-3255 and fix it if it is affected.\n\nWhat it is: CVE-2023-3255 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 13 Sep 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-3255 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-2023-3255/ (Markdown: https://insights.sbomify.com/CVE-2023-3255/index.md)","id":"CVE-2023-3255","markdown":"https://insights.sbomify.com/CVE-2023-3255/index.md","name":"CVE-2023-3255","record":{"aliases":["AZL-28791","AZL-35169","BELL-CVE-2023-3255","DEBIAN-CVE-2023-3255","GHSA-p5xv-5g6h-qw33","OESA-2023-1785","OESA-2023-1786","OESA-2023-1787","UBUNTU-CVE-2023-3255","openSUSE-SU-2024:13082-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"QEMU VNC server","requires_auth":"low_privilege","summary":"A remote authenticated VNC client can trigger an infinite loop in QEMU's VNC server via crafted clipboard data, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.","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: vnc: infinite loop in inflate_buffer() leads to denial of service","id":"CVE-2023-3255","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","qemu:qemu","redhat:enterprise_linux"],"type":"denial_of_service","year":"2023"},"n_packages":1,"n_references":4,"next":{"headline":"Advantech R-SeeNet External Control of File Name or Path","id":"CVE-2023-3256"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["8.0.3-2.1"],"introduced":["0"],"last_affected":[],"package":"qemu","purl":"pkg:rpm/opensuse/qemu\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:13082-1"}],"prev":{"headline":"Widgets for Google Reviews \u003c= 10.9 - Cross-Site Request Forgery to Plugin Settings Reset","id":"CVE-2023-3254"},"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":"2023-09-13","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":"2025-11-08","vendors":["Red Hat"]},"summary":"A remote authenticated VNC client can trigger an infinite loop in QEMU's VNC server via crafted clipboard data, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2023-3255/"}