{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-31523 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-31523 is a high-severity vulnerability in n/a, published on 21 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31523 and fix it if it is affected.\n\nWhat it is: CVE-2021-31523 is a high-severity vulnerability in n/a, published on 21 Apr 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-31523 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-31523/ (Markdown: https://insights.sbomify.com/CVE-2021-31523/index.md)","id":"CVE-2021-31523","markdown":"https://insights.sbomify.com/CVE-2021-31523/index.md","name":"CVE-2021-31523","record":{"aliases":["DEBIAN-CVE-2021-31523","GHSA-74g6-fv7f-g2hq","UBUNTU-CVE-2021-31523"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux screensaver utility","requires_auth":"low_privilege","summary":"Local attackers can escalate privileges due to excessive capabilities granted to the sonar binary in the Debian xscreensaver package.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"xscreensaver","vendor":"xscreensaver_project"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-269","name":"Improper Privilege Management"}],"description":"The Debian xscreensaver 5.42+dfsg1-1 package for XScreenSaver has cap_net_raw enabled for the /usr/libexec/xscreensaver/sonar file, which allows local users to gain privileges because this is arguably incompatible with the design of the Mesa 3D Graphics library dependency.","ecosystems":[],"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":"Privilege escalation in n/a","id":"CVE-2021-31523","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"golang.org/x/net/http/httpguts vulnerable to Uncontrolled Recursion","id":"CVE-2021-31525"},"packages":[],"prev":{"headline":"Apache Kylin unsafe class loading","id":"CVE-2021-31522"},"products":["n/a"],"published":"2021-04-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2024-08-03","vendors":["n/a"]},"summary":"Local attackers can escalate privileges due to excessive capabilities granted to the sonar binary in the Debian xscreensaver package.","url":"https://insights.sbomify.com/CVE-2021-31523/"}