{"answers":{"affected":"3 open source packages ship an affected version, including github.com/quic-go/quic-go. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-46239 in the wild and no public exploit code.","fix":"Upgrade github.com/quic-go/quic-go to 0.37.3 or later.","what":"CVE-2023-46239 is a high-severity vulnerability in quic-go, published on 31 Oct 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-2023-46239 and fix it if it is affected.\n\nWhat it is: CVE-2023-46239 is a high-severity vulnerability in quic-go, published on 31 Oct 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-2023-46239 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/quic-go/quic-go (Go): affected from 0.37.0; fixed in 0.37.3\n- github.com/quic-go/quic-go (Go): affected from 0.37.0; fixed in 0.37.3\n- github.com/quic-go/quic-go (Go): affected from 0.37.0; fixed in 0.37.3\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-2023-46239/ (Markdown: https://insights.sbomify.com/CVE-2023-46239/index.md)","id":"CVE-2023-46239","markdown":"https://insights.sbomify.com/CVE-2023-46239/index.md","name":"CVE-2023-46239","record":{"aliases":["GHSA-3q6m-v84f-6p9h","GO-2023-2160","UBUNTU-CVE-2023-46239"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go QUIC library","requires_auth":"none","summary":"A remote attacker can crash a quic-go node by triggering a nil pointer dereference during the QUIC handshake process.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"quic-go","vendor":"quic-go_project"}],"cvss":{"score":7.5,"severity":"high","source":"cna","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-476","name":"NULL Pointer Dereference"},{"id":"CWE-248","name":"Uncaught Exception"}],"description":"quic-go is an implementation of the QUIC protocol in Go. Starting in version 0.37.0 and prior to version 0.37.3, by serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space. An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets. Version 0.37.3 contains a patch. Versions before 0.37.0 are not affected.","ecosystems":["Go"],"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":"quic-go vulnerable to pointer dereference that can lead to panic","id":"CVE-2023-46239","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"null_dereference","year":"2023"},"n_packages":3,"n_references":3,"next":{"headline":"CodeIgniter4 vulnerable to information disclosure when detailed error report is displayed in production environment","id":"CVE-2023-46240"},"packages":[{"ecosystem":"Go","fixed":["0.37.3"],"introduced":["0.37.0"],"last_affected":[],"package":"github.com/quic-go/quic-go","purl":null,"source":"GHSA-3q6m-v84f-6p9h"},{"ecosystem":"Go","fixed":["0.37.3"],"introduced":["0.37.0"],"last_affected":[],"package":"github.com/quic-go/quic-go","purl":"pkg:golang/github.com/quic-go/quic-go","source":"GHSA-3q6m-v84f-6p9h"},{"ecosystem":"Go","fixed":["0.37.3"],"introduced":["0.37.0"],"last_affected":[],"package":"github.com/quic-go/quic-go","purl":"pkg:golang/github.com/quic-go/quic-go","source":"GO-2023-2160"}],"prev":{"headline":"XSS with User Avatar image in ZITADEL","id":"CVE-2023-46238"},"products":["quic-go"],"published":"2023-10-31","related":[{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2022-30591","kev_date_added":null,"published":"2022-07-06"},{"cvss_score":6.4,"headline":"quic-go's path validation mechanism can cause denial of service","id":"CVE-2023-49295","kev_date_added":null,"published":"2024-01-10"},{"cvss_score":5.3,"headline":"quic-go: HTTP/3 QPACK Trailer Expansion Memory Exhaustion","id":"CVE-2026-40898","kev_date_added":null,"published":"2026-06-04"},{"cvss_score":5.3,"headline":"quic-go HTTP/3 QPACK Header Expansion DoS","id":"CVE-2025-64702","kev_date_added":null,"published":"2025-12-11"}],"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":"Go Vulnerability Database","prefix":"GO"},{"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":"partial"},"state":"PUBLISHED","updated":"2024-09-05","vendors":["quic-go"]},"summary":"A remote attacker can crash a quic-go node by triggering a nil pointer dereference during the QUIC handshake process.","url":"https://insights.sbomify.com/CVE-2023-46239/"}