{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-25636 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-25636 is a high-severity vulnerability in Fedoraproject Fedora, published on 22 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-25636 and fix it if it is affected.\n\nWhat it is: CVE-2021-25636 is a high-severity vulnerability in Fedoraproject Fedora, published on 22 Feb 2022. 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-2021-25636 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. 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-2021-25636/ (Markdown: https://insights.sbomify.com/CVE-2021-25636/index.md)","id":"CVE-2021-25636","markdown":"https://insights.sbomify.com/CVE-2021-25636/index.md","name":"CVE-2021-25636","record":{"aliases":["ALSA-2022:7461","DEBIAN-CVE-2021-25636","GHSA-3cgr-wxhv-h7xw","RHSA-2022:7461","RLSA-2022:7461","SUSE-SU-2022:0886-1","SUSE-SU-2022:1093-1","UBUNTU-CVE-2021-25636","USN-5330-1","openSUSE-SU-2022:0886-1"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"LibreOffice office suite","requires_auth":"none","summary":"Attackers can bypass digital signature validation in LibreOffice by manipulating XML streams, causing the application to report invalid signatures as valid.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Document Fdn.","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"libreoffice","vendor":"libreoffice"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"},{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to contain both \"X509Data\" and \"KeyValue\" children of the \"KeyInfo\" tag, which when opened caused LibreOffice to verify using the \"KeyValue\" but to report verification with the unrelated \"X509Data\" value. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.5.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::crb","Rocky Linux:8","SUSE:Linux Enterprise Module for Package Hub 15 SP3","SUSE:Linux Enterprise Software Development Kit 12 SP5","SUSE:Linux Enterprise Workstation Extension 12 SP5","SUSE:Linux Enterprise Workstation Extension 15 SP3","openSUSE:Leap 15.3"],"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":"Incorrect trust validation of signature with ambiguous KeyInfo children","id":"CVE-2021-25636","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","libreoffice:libreoffice"],"type":"security_feature_bypass","year":"2021"},"n_packages":387,"n_references":3,"next":{"headline":"Open Redirect or SSRF vulnerability usage of parseURL","id":"CVE-2021-25640"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-af","purl":"pkg:rpm/almalinux/autocorr-af","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-bg","purl":"pkg:rpm/almalinux/autocorr-bg","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-ca","purl":"pkg:rpm/almalinux/autocorr-ca","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-cs","purl":"pkg:rpm/almalinux/autocorr-cs","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-da","purl":"pkg:rpm/almalinux/autocorr-da","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-de","purl":"pkg:rpm/almalinux/autocorr-de","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-en","purl":"pkg:rpm/almalinux/autocorr-en","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-es","purl":"pkg:rpm/almalinux/autocorr-es","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-fa","purl":"pkg:rpm/almalinux/autocorr-fa","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-fi","purl":"pkg:rpm/almalinux/autocorr-fi","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-fr","purl":"pkg:rpm/almalinux/autocorr-fr","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-ga","purl":"pkg:rpm/almalinux/autocorr-ga","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-hr","purl":"pkg:rpm/almalinux/autocorr-hr","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-hu","purl":"pkg:rpm/almalinux/autocorr-hu","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-is","purl":"pkg:rpm/almalinux/autocorr-is","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-it","purl":"pkg:rpm/almalinux/autocorr-it","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-ja","purl":"pkg:rpm/almalinux/autocorr-ja","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-ko","purl":"pkg:rpm/almalinux/autocorr-ko","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-lb","purl":"pkg:rpm/almalinux/autocorr-lb","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-lt","purl":"pkg:rpm/almalinux/autocorr-lt","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-mn","purl":"pkg:rpm/almalinux/autocorr-mn","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-nl","purl":"pkg:rpm/almalinux/autocorr-nl","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-pl","purl":"pkg:rpm/almalinux/autocorr-pl","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-pt","purl":"pkg:rpm/almalinux/autocorr-pt","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-ro","purl":"pkg:rpm/almalinux/autocorr-ro","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-ru","purl":"pkg:rpm/almalinux/autocorr-ru","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-sk","purl":"pkg:rpm/almalinux/autocorr-sk","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-sl","purl":"pkg:rpm/almalinux/autocorr-sl","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-sr","purl":"pkg:rpm/almalinux/autocorr-sr","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-sv","purl":"pkg:rpm/almalinux/autocorr-sv","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-tr","purl":"pkg:rpm/almalinux/autocorr-tr","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-vi","purl":"pkg:rpm/almalinux/autocorr-vi","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"autocorr-zh","purl":"pkg:rpm/almalinux/autocorr-zh","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"libreoffice-base","purl":"pkg:rpm/almalinux/libreoffice-base","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"libreoffice-calc","purl":"pkg:rpm/almalinux/libreoffice-calc","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"libreoffice-core","purl":"pkg:rpm/almalinux/libreoffice-core","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"libreoffice-data","purl":"pkg:rpm/almalinux/libreoffice-data","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"libreoffice-draw","purl":"pkg:rpm/almalinux/libreoffice-draw","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"libreoffice-emailmerge","purl":"pkg:rpm/almalinux/libreoffice-emailmerge","source":"ALSA-2022:7461"},{"ecosystem":"AlmaLinux:8","fixed":["1:6.4.7.2-11.el8.alma"],"introduced":["0"],"last_affected":[],"package":"libreoffice-filters","purl":"pkg:rpm/almalinux/libreoffice-filters","source":"ALSA-2022:7461"}],"prev":{"headline":"Content Manipulation with Certificate Validation Attack","id":"CVE-2021-25635"},"products":["LibreOffice"],"published":"2022-02-22","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"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":"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":["The Document Foundation"]},"summary":"Attackers can bypass digital signature validation in LibreOffice by manipulating XML streams, causing the application to report invalid signatures as valid.","url":"https://insights.sbomify.com/CVE-2021-25636/"}