{"answers":{"affected":"2 open source packages ship an affected version, including golang and stdlib. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-45287 in the wild and no public exploit code.","fix":"Upgrade golang to 1.20.0 or later.","what":"CVE-2023-45287 is a high-severity vulnerability in Golang Go, published on 5 Dec 2023."},"fix_prompt":"Check this codebase for CVE-2023-45287 and fix it if it is affected.\n\nWhat it is: CVE-2023-45287 is a high-severity vulnerability in Golang Go, published on 5 Dec 2023. \nExploitation: There is no known exploitation of CVE-2023-45287 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- golang (Bitnami): affected all versions; fixed in 1.20.0\n- stdlib (Go): affected all versions; fixed in 1.20.0\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-2023-45287/ (Markdown: https://insights.sbomify.com/CVE-2023-45287/index.md)","id":"CVE-2023-45287","markdown":"https://insights.sbomify.com/CVE-2023-45287/index.md","name":"CVE-2023-45287","record":{"aliases":["ALSA-2024:2239","AZL-32100","AZL-32123","AZL-34764","AZL-37310","AZL-37380","AZL-79088","AZL-98769","BELL-CVE-2023-45287","BIT-golang-2023-45287","DEBIAN-CVE-2023-45287","GHSA-33qr-2xwr-95pw","GO-2023-2375","MINI-xp5h-r6c4-pp9g","RHSA-2024:2239","RHSA-2024:4429","UBUNTU-CVE-2023-45287"],"analysis":null,"analysis_generated_by":null,"assigner":"Go","cpe":[{"product":"go","vendor":"golang"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-203","name":"Observable Discrepancy"}],"description":"Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.","ecosystems":["AlmaLinux:9","Bitnami","Go","Red Hat:enterprise_linux:9::appstream","Red Hat:rhel_eus:9.2::appstream"],"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":"Before Go 1.20, the RSA based key exchange methods in crypto/tls may exhibit a timing side channel","id":"CVE-2023-45287","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"golang:go","products":["golang:go"],"type":null,"year":"2023"},"n_packages":11,"n_references":6,"next":{"headline":"HTTP/2 CONTINUATION flood in net/http","id":"CVE-2023-45288"},"packages":[{"ecosystem":"Bitnami","fixed":["1.20.0"],"introduced":["0"],"last_affected":[],"package":"golang","purl":"pkg:bitnami/golang","source":"BIT-golang-2023-45287"},{"ecosystem":"Go","fixed":["1.20.0"],"introduced":["0"],"last_affected":[],"package":"stdlib","purl":"pkg:golang/stdlib","source":"GO-2023-2375"},{"ecosystem":"AlmaLinux:9","fixed":["2:1.14.3-0.1.el9"],"introduced":["0"],"last_affected":[],"package":"skopeo","purl":"pkg:rpm/almalinux/skopeo","source":"ALSA-2024:2239"},{"ecosystem":"AlmaLinux:9","fixed":["2:1.14.3-0.1.el9"],"introduced":["0"],"last_affected":[],"package":"skopeo-tests","purl":"pkg:rpm/almalinux/skopeo-tests","source":"ALSA-2024:2239"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["2:1.14.3-0.1.el9"],"introduced":["0"],"last_affected":[],"package":"skopeo","purl":"pkg:rpm/redhat/skopeo","source":"RHSA-2024:2239"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["2:1.14.3-0.1.el9"],"introduced":["0"],"last_affected":[],"package":"skopeo-debuginfo","purl":"pkg:rpm/redhat/skopeo-debuginfo","source":"RHSA-2024:2239"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["2:1.14.3-0.1.el9"],"introduced":["0"],"last_affected":[],"package":"skopeo-debugsource","purl":"pkg:rpm/redhat/skopeo-debugsource","source":"RHSA-2024:2239"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["2:1.14.3-0.1.el9"],"introduced":["0"],"last_affected":[],"package":"skopeo-tests","purl":"pkg:rpm/redhat/skopeo-tests","source":"RHSA-2024:2239"},{"ecosystem":"Red Hat:rhel_eus:9.2::appstream","fixed":["1:1.2.0-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"containernetworking-plugins","purl":"pkg:rpm/redhat/containernetworking-plugins","source":"RHSA-2024:4429"},{"ecosystem":"Red Hat:rhel_eus:9.2::appstream","fixed":["1:1.2.0-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"containernetworking-plugins-debuginfo","purl":"pkg:rpm/redhat/containernetworking-plugins-debuginfo","source":"RHSA-2024:4429"},{"ecosystem":"Red Hat:rhel_eus:9.2::appstream","fixed":["1:1.2.0-3.el9_2"],"introduced":["0"],"last_affected":[],"package":"containernetworking-plugins-debugsource","purl":"pkg:rpm/redhat/containernetworking-plugins-debugsource","source":"RHSA-2024:4429"}],"prev":{"headline":"HTTP request body disclosure in github.com/go-resty/resty/v2","id":"CVE-2023-45286"},"products":["crypto/tls"],"published":"2023-12-05","related":[{"cvss_score":8.1,"headline":"Microsoft Windows CryptoAPI Spoofing","id":"CVE-2020-0601","kev_date_added":"2021-11-03","published":"2020-01-14"},{"cvss_score":9.8,"headline":"Missing bound checks can lead to memory corruption in safe Go in cmd/compile","id":"CVE-2026-27143","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.8,"headline":"Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip","id":"CVE-2024-24790","kev_date_added":null,"published":"2024-06-05"},{"cvss_score":9.8,"headline":"Arbitrary code execution via go.mod toolchain directive in cmd/go","id":"CVE-2023-39320","kev_date_added":null,"published":"2023-09-08"},{"cvss_score":9.8,"headline":"Improper handling of JavaScript whitespace in html/template","id":"CVE-2023-24540","kev_date_added":null,"published":"2023-05-11"},{"cvss_score":9.8,"headline":"Backticks not treated as string delimiters in html/template","id":"CVE-2023-24538","kev_date_added":null,"published":"2023-04-06"},{"cvss_score":9.8,"headline":"Other in go/golang","id":"CVE-2012-2666","kev_date_added":null,"published":"2021-07-09"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2025-02-13","vendors":["Go standard library"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2023-45287/"}