{"answers":{"affected":"4 open source packages ship an affected version, including activesupport. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-22796 in the wild and no public exploit code.","fix":"Upgrade activesupport to a fixed version for your release line: 6.1.7.1 or 7.0.4.1.","what":"CVE-2023-22796 is a high-severity denial of service vulnerability in https://github.com/rails/rails, published on 9 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-22796 and fix it if it is affected.\n\nWhat it is: CVE-2023-22796 is a high-severity denial of service vulnerability in https://github.com/rails/rails, published on 9 Feb 2023. 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-2023-22796 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- activesupport (RubyGems): affected all versions; fixed in 6.1.7.1\n- activesupport (RubyGems): affected all versions; fixed in 6.1.7.1\n- activesupport (RubyGems): affected from 7.0.0; fixed in 7.0.4.1\n- activesupport (RubyGems): affected from 7.0.0; fixed in 7.0.4.1\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-2023-22796/ (Markdown: https://insights.sbomify.com/CVE-2023-22796/index.md)","id":"CVE-2023-22796","markdown":"https://insights.sbomify.com/CVE-2023-22796/index.md","name":"CVE-2023-22796","record":{"aliases":["DEBIAN-CVE-2023-22796","GHSA-j6gc-792m-qgm2","OESA-2023-1130","OESA-2023-1140","OESA-2023-1145","OESA-2023-1154","SUSE-SU-2023:0275-1","SUSE-SU-2023:0612-1","UBUNTU-CVE-2023-22796","openSUSE-SU-2024:12767-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby on Rails","requires_auth":"none","summary":"Attackers can cause denial of service in Ruby on Rails applications by sending specially crafted strings that trigger catastrophic backtracking in regular expressions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"activesupport","vendor":"activesupport_project"}],"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:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A regular expression based DoS vulnerability in Active Support \u003c6.1.7.1 and \u003c7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability.","ecosystems":["RubyGems","SUSE:Linux Enterprise High Availability Extension 15 SP1","SUSE:Linux Enterprise High Availability Extension 15 SP2","SUSE:Linux Enterprise High Availability Extension 15 SP3","SUSE:Linux Enterprise High Availability Extension 15 SP4","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.4","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":"ReDoS based DoS vulnerability in Active Support's underscore","id":"CVE-2023-22796","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":12,"n_references":3,"next":{"headline":"Open Redirect Vulnerability in Action Pack","id":"CVE-2023-22797"},"packages":[{"ecosystem":"RubyGems","fixed":["6.1.7.1"],"introduced":["0"],"last_affected":[],"package":"activesupport","purl":null,"source":"GHSA-j6gc-792m-qgm2"},{"ecosystem":"RubyGems","fixed":["6.1.7.1"],"introduced":["0"],"last_affected":[],"package":"activesupport","purl":"pkg:gem/activesupport","source":"GHSA-j6gc-792m-qgm2"},{"ecosystem":"RubyGems","fixed":["7.0.4.1"],"introduced":["7.0.0"],"last_affected":[],"package":"activesupport","purl":null,"source":"GHSA-j6gc-792m-qgm2"},{"ecosystem":"RubyGems","fixed":["7.0.4.1"],"introduced":["7.0.0"],"last_affected":[],"package":"activesupport","purl":"pkg:gem/activesupport","source":"GHSA-j6gc-792m-qgm2"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP1","fixed":["5.1.4-150000.3.12.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-5_1","purl":"pkg:rpm/suse/rubygem-activesupport-5_1\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP1","source":"SUSE-SU-2023:0275-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP2","fixed":["5.1.4-150000.3.12.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-5_1","purl":"pkg:rpm/suse/rubygem-activesupport-5_1\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP2","source":"SUSE-SU-2023:0275-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP3","fixed":["5.1.4-150000.3.12.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-5_1","purl":"pkg:rpm/suse/rubygem-activesupport-5_1\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP3","source":"SUSE-SU-2023:0275-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 15 SP4","fixed":["5.1.4-150000.3.12.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-5_1","purl":"pkg:rpm/suse/rubygem-activesupport-5_1\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4","source":"SUSE-SU-2023:0275-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["4.2.9-7.15.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-4_2","purl":"pkg:rpm/suse/rubygem-activesupport-4_2\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2023:0612-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 9","fixed":["4.2.9-7.15.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-4_2","purl":"pkg:rpm/suse/rubygem-activesupport-4_2\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%209","source":"SUSE-SU-2023:0612-1"},{"ecosystem":"openSUSE:Leap 15.4","fixed":["5.1.4-150000.3.12.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-5_1","purl":"pkg:rpm/opensuse/rubygem-activesupport-5_1\u0026distro=openSUSE%20Leap%2015.4","source":"SUSE-SU-2023:0275-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["7.0.4.1-1.1"],"introduced":["0"],"last_affected":[],"package":"rubygem-activesupport-7.0","purl":"pkg:rpm/opensuse/rubygem-activesupport-7.0\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:12767-1"}],"prev":{"headline":"ReDoS based DoS vulnerability in Action Dispatch","id":"CVE-2023-22795"},"products":["https://github.com/rails/rails"],"published":"2023-02-09","related":[{"cvss_score":9.8,"headline":"active-support impersonates 'activesupport' gem","id":"CVE-2018-3779","kev_date_added":null,"published":"2018-08-10"}],"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":"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-11-27","vendors":["n/a"]},"summary":"Attackers can cause denial of service in Ruby on Rails applications by sending specially crafted strings that trigger catastrophic backtracking in regular expressions.","url":"https://insights.sbomify.com/CVE-2023-22796/"}