{"answers":{"affected":"2 open source packages ship an affected version, including @novnc/novnc. It affects 4 products.","exploited":"There is no known exploitation of CVE-2017-18635 in the wild and no public exploit code.","fix":"Upgrade @novnc/novnc to 0.6.2 or later.","what":"CVE-2017-18635 is a medium-severity cross-site scripting vulnerability in Canonical Ubuntu Linux, published on 25 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2017-18635 and fix it if it is affected.\n\nWhat it is: CVE-2017-18635 is a medium-severity cross-site scripting vulnerability in Canonical Ubuntu Linux, published on 25 Sep 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2017-18635 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- @novnc/novnc (npm): affected all versions; fixed in 0.6.2\n- @novnc/novnc (npm): affected all versions; fixed in 0.6.2\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-2017-18635/ (Markdown: https://insights.sbomify.com/CVE-2017-18635/index.md)","id":"CVE-2017-18635","markdown":"https://insights.sbomify.com/CVE-2017-18635/index.md","name":"CVE-2017-18635","record":{"aliases":["DEBIAN-CVE-2017-18635","DLA-1946-1","DLA-2854-1","GHSA-49rv-g7w5-m8xx","MGASA-2020-0374","RHSA-2020:0754","UBUNTU-CVE-2017-18635","USN-4522-1"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"VNC web client","requires_auth":"none","summary":"A remote VNC server can inject arbitrary HTML into the noVNC web page via status messages, allowing cross-site scripting attacks against users.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"novnc","vendor":"novnc"},{"product":"openstack","vendor":"redhat"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"An XSS vulnerability was discovered in noVNC before 0.6.2 in which the remote VNC server could inject arbitrary HTML into the noVNC web page via the messages propagated to the status field, such as the VNC server name.","ecosystems":["Red Hat:openstack:13::el7","npm"],"exploits":{"exploitdb":0,"first_seen":"2019-10-16","github_poc":1,"max_poc_stars":5,"metasploit":0,"nuclei":0,"refs":[{"date":"2019-10-16T21:27:40Z","kind":"github_poc","ref":"https://github.com/ShielderSec/CVE-2017-18635","stars":5,"title":"PoC for CVE-2017-18635"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Cross-Site Scripting in @novnc/novnc","id":"CVE-2017-18635","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","redhat:openstack"],"type":"xss","year":"2017"},"n_packages":3,"n_references":10,"next":{"headline":"Path traversal in n/a","id":"CVE-2017-18636"},"packages":[{"ecosystem":"npm","fixed":["0.6.2"],"introduced":["0"],"last_affected":[],"package":"@novnc/novnc","purl":null,"source":"GHSA-49rv-g7w5-m8xx"},{"ecosystem":"npm","fixed":["0.6.2"],"introduced":["0"],"last_affected":[],"package":"@novnc/novnc","purl":"pkg:npm/%40novnc/novnc","source":"GHSA-49rv-g7w5-m8xx"},{"ecosystem":"Red Hat:openstack:13::el7","fixed":["0:1.1.0-2.el7ost"],"introduced":["0"],"last_affected":[],"package":"novnc","purl":"pkg:rpm/redhat/novnc","source":"RHSA-2020:0754"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2017-18634"},"products":["n/a"],"published":"2019-09-25","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"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":"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"A remote VNC server can inject arbitrary HTML into the noVNC web page via status messages, allowing cross-site scripting attacks against users.","url":"https://insights.sbomify.com/CVE-2017-18635/"}