{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2017-1000257 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2017-1000257 is a critical vulnerability in Debian Debian Linux, published on 31 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-1000257 and fix it if it is affected.\n\nWhat it is: CVE-2017-1000257 is a critical vulnerability in Debian Debian Linux, published on 31 Oct 2017. 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-2017-1000257 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2017-1000257/ (Markdown: https://insights.sbomify.com/CVE-2017-1000257/index.md)","id":"CVE-2017-1000257","markdown":"https://insights.sbomify.com/CVE-2017-1000257/index.md","name":"CVE-2017-1000257","record":{"aliases":["ALPINE-CVE-2017-1000257","CLEANSTART-2026-IY06561","CURL-CVE-2017-1000257","DEBIAN-CVE-2017-1000257","DLA-1143-1","DSA-4007-1","GHSA-6x54-39w9-rqhw","RHSA-2017:3263","UBUNTU-CVE-2017-1000257","USN-3457-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"libcurl library","requires_auth":"none","summary":"libcurl may read beyond heap buffer boundaries when processing zero-length IMAP FETCH responses, potentially leaking memory or causing crashes.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"libcurl","vendor":"haxx"}],"cvss":{"score":9.1,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"An IMAP FETCH response line indicates the size of the returned data, in number of bytes. When that response says the data is zero bytes, libcurl would pass on that (non-existing) data with a pointer and the size (zero) to the deliver-data function. libcurl's deliver-data function treats zero as a magic number and invokes strlen() on the data to figure out the length. The strlen() is called on a heap based buffer that might not be zero terminated so libcurl might read beyond the end of it into whatever memory lies after (or just crash) and then deliver that to the application as if it was actually downloaded.","ecosystems":["Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation"],"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":"Information disclosure in n/a","id":"CVE-2017-1000257","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","haxx:libcurl"],"type":"information_disclosure","year":"2017"},"n_packages":16,"n_references":8,"next":{"headline":"Jenkins Remote Code Execution","id":"CVE-2017-1000353"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl","purl":"pkg:rpm/redhat/curl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"curl-debuginfo","purl":"pkg:rpm/redhat/curl-debuginfo","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl","purl":"pkg:rpm/redhat/libcurl","source":"RHSA-2017:3263"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["0:7.29.0-42.el7_4.1"],"introduced":["0"],"last_affected":[],"package":"libcurl-devel","purl":"pkg:rpm/redhat/libcurl-devel","source":"RHSA-2017:3263"}],"prev":{"headline":"Misconfiguration in n/a","id":"CVE-2017-1000256"},"products":["n/a"],"published":"2017-10-31","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"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":"partial"},"state":"PUBLISHED","updated":"2026-04-15","vendors":["n/a"]},"summary":"libcurl may read beyond heap buffer boundaries when processing zero-length IMAP FETCH responses, potentially leaking memory or causing crashes.","url":"https://insights.sbomify.com/CVE-2017-1000257/"}