{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2021-28116 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-28116 is a low-severity vulnerability in Debian Debian Linux, published on 9 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-28116 and fix it if it is affected.\n\nWhat it is: CVE-2021-28116 is a low-severity vulnerability in Debian Debian Linux, published on 9 Mar 2021. 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-2021-28116 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-2021-28116/ (Markdown: https://insights.sbomify.com/CVE-2021-28116/index.md)","id":"CVE-2021-28116","markdown":"https://insights.sbomify.com/CVE-2021-28116/index.md","name":"CVE-2021-28116","record":{"aliases":["ALPINE-CVE-2021-28116","ALSA-2022:1939","CLSA-2022-1652719177","CLSA-2022-1652732686","CLSA-2026-1776877737","CLSA-2026-1776941204","CLSA-2026-1776949767","DEBIAN-CVE-2021-28116","GHSA-gf37-7jp8-4qpf","GHSA-rgf3-9v3p-qp82","MGASA-2021-0499","OESA-2022-1618","RHSA-2022:1939","RLSA-2022:1939","SUSE-SU-2021:3334-1","SUSE-SU-2021:3485-1","UBUNTU-CVE-2021-28116","USN-5104-1","openSUSE-SU-2021:1419-1","openSUSE-SU-2021:3485-1","openSUSE-SU-2024:11559-1"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Squid proxy server","requires_auth":"none","summary":"An out-of-bounds read in Squid's WCCP protocol allows information disclosure, potentially leading to remote code execution in specific configurations.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"squid","vendor":"squid-cache"}],"cvss":{"score":3.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AC:H/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:8::appstream","Rocky Linux:8","SUSE:Linux Enterprise Module for Server Applications 15 SP2","SUSE:Linux Enterprise Module for Server Applications 15 SP3","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","openSUSE:Leap 15.2","openSUSE:Leap 15.3","openSUSE:Tumbleweed"],"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-2021-28116","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","squid-cache:squid"],"type":"information_disclosure","year":"2021"},"n_packages":19,"n_references":8,"next":{"headline":"Open redirect in n/a","id":"CVE-2021-28117"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["1.0.1-2.module_el8.6.0+2741+01592ae8"],"introduced":["0"],"last_affected":[],"package":"libecap","purl":"pkg:rpm/almalinux/libecap","source":"ALSA-2022:1939"},{"ecosystem":"AlmaLinux:8","fixed":["1.0.1-2.module_el8.6.0+2741+01592ae8"],"introduced":["0"],"last_affected":[],"package":"libecap-devel","purl":"pkg:rpm/almalinux/libecap-devel","source":"ALSA-2022:1939"},{"ecosystem":"AlmaLinux:8","fixed":["7:4.15-3.module_el8.6.0+2741+01592ae8"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/almalinux/squid","source":"ALSA-2022:1939"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.1.0+4044+36416a77"],"introduced":["0"],"last_affected":[],"package":"libecap","purl":"pkg:rpm/redhat/libecap","source":"RHSA-2022:1939"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.1.0+4044+36416a77"],"introduced":["0"],"last_affected":[],"package":"libecap-debuginfo","purl":"pkg:rpm/redhat/libecap-debuginfo","source":"RHSA-2022:1939"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.1.0+4044+36416a77"],"introduced":["0"],"last_affected":[],"package":"libecap-debugsource","purl":"pkg:rpm/redhat/libecap-debugsource","source":"RHSA-2022:1939"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.0.1-2.module+el8.1.0+4044+36416a77"],"introduced":["0"],"last_affected":[],"package":"libecap-devel","purl":"pkg:rpm/redhat/libecap-devel","source":"RHSA-2022:1939"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["7:4.15-3.module+el8.6.0+14176+9782b8ab"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/redhat/squid","source":"RHSA-2022:1939"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["7:4.15-3.module+el8.6.0+14176+9782b8ab"],"introduced":["0"],"last_affected":[],"package":"squid-debuginfo","purl":"pkg:rpm/redhat/squid-debuginfo","source":"RHSA-2022:1939"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["7:4.15-3.module+el8.6.0+14176+9782b8ab"],"introduced":["0"],"last_affected":[],"package":"squid-debugsource","purl":"pkg:rpm/redhat/squid-debugsource","source":"RHSA-2022:1939"},{"ecosystem":"Rocky Linux:8","fixed":["0:1.0.1-2.module+el8.4.0+404+316a0dc5"],"introduced":["0"],"last_affected":[],"package":"libecap","purl":"pkg:rpm/rocky-linux/libecap?distro=rocky-linux-8\u0026epoch=0","source":"RLSA-2022:1939"},{"ecosystem":"Rocky Linux:8","fixed":["7:4.15-3.module+el8.6.0+1044+67ab5d0a.2"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/rocky-linux/squid?distro=rocky-linux-8\u0026epoch=7","source":"RLSA-2022:1939"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP2","fixed":["4.17-5.29.1"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/suse/squid\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2","source":"SUSE-SU-2021:3485-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP3","fixed":["4.17-5.29.1"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/suse/squid\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3","source":"SUSE-SU-2021:3485-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["4.17-4.21.1"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/suse/squid\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2021:3334-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["4.17-4.21.1"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/suse/squid\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2021:3334-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["4.17-lp152.2.12.1"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/opensuse/squid\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:1419-1"},{"ecosystem":"openSUSE:Leap 15.3","fixed":["4.17-5.29.1"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/opensuse/squid\u0026distro=openSUSE%20Leap%2015.3","source":"openSUSE-SU-2021:3485-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["5.2-1.1"],"introduced":["0"],"last_affected":[],"package":"squid","purl":"pkg:rpm/opensuse/squid\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:11559-1"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2021-28115"},"products":["n/a"],"published":"2021-03-09","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":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"An out-of-bounds read in Squid's WCCP protocol allows information disclosure, potentially leading to remote code execution in specific configurations.","url":"https://insights.sbomify.com/CVE-2021-28116/"}