ALT-BU-2025-14826-1
Branch c10f2 update bulletin.
Package apache2-mod_security updated to version 2.9.12-alt1 for branch c10f2 in task 400363.
Closed vulnerabilities
Modified: 2022-09-02
BDU:2022-00191
Уязвимость модуля Apache для усиления безопасности веб-приложений modsecurity-apache, связанная с ошибками при обработке JSON-объектов, позволяющая нарушителю вызвать отказ в обслуживании
Modified: 2024-04-12
BDU:2023-07547
Уязвимость WAF движка для Apache ModSecurity, связанная с ошибками в настройках безопасности, позволяющая нарушителю обойти существующие правила межсетевого экрана
BDU:2024-04426
Уязвимость компонента MULTIPART_PART_HEADERS межсетевого экрана для защиты веб-приложений ModSecurity, позволяющая нарушителю обойти защиту брандмауэра
BDU:2025-06207
Уязвимость конфигурации sanitiseMatchedBytes межсетевого экрана для защиты веб-приложений ModSecurity, позволяющая нарушителю вызвать отказ в обслуживании
Modified: 2025-07-03
CVE-2021-42717
ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4.
- https://lists.debian.org/debian-lts-announce/2022/05/msg00042.html
- https://www.debian.org/security/2021/dsa-5023
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/modsecurity-dos-vulnerability-in-json-parsing-cve-2021-42717/
- https://lists.debian.org/debian-lts-announce/2022/05/msg00042.html
- https://www.debian.org/security/2021/dsa-5023
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/modsecurity-dos-vulnerability-in-json-parsing-cve-2021-42717/
Modified: 2025-07-03
CVE-2022-48279
In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase.
- https://coreruleset.org/20220919/crs-version-3-3-3-and-3-2-2-covering-several-cves/
- https://github.com/SpiderLabs/ModSecurity/pull/2795
- https://github.com/SpiderLabs/ModSecurity/pull/2797
- https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.6
- https://github.com/SpiderLabs/ModSecurity/releases/tag/v3.0.8
- https://lists.debian.org/debian-lts-announce/2023/01/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
- https://coreruleset.org/20220919/crs-version-3-3-3-and-3-2-2-covering-several-cves/
- https://github.com/SpiderLabs/ModSecurity/pull/2795
- https://github.com/SpiderLabs/ModSecurity/pull/2797
- https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.6
- https://github.com/SpiderLabs/ModSecurity/releases/tag/v3.0.8
- https://lists.debian.org/debian-lts-announce/2023/01/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
Modified: 2025-04-02
CVE-2023-24021
Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the FILES_TMP_CONTENT collection.
- https://github.com/SpiderLabs/ModSecurity/pull/2857
- https://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334
- https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.7
- https://lists.debian.org/debian-lts-announce/2023/01/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
- https://github.com/SpiderLabs/ModSecurity/pull/2857
- https://github.com/SpiderLabs/ModSecurity/pull/2857/commits/4324f0ac59f8225aa44bc5034df60dbeccd1d334
- https://github.com/SpiderLabs/ModSecurity/releases/tag/v2.9.7
- https://lists.debian.org/debian-lts-announce/2023/01/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52TGCZCOHYBDCVWJYNN2PS4QLOHCXWTQ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYRTXTOQQI6SB2TLI5QXU76DURSLS4XI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WCH6JM4I4MD4YABYFHSBDDOUFDGIFJKL/
Modified: 2025-06-20
CVE-2025-47947
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is `application/json`, and there is at least one rule which does a `sanitiseMatchedBytes` action. A patch is available at pull request 3389 and expected to be part of version 2.9.9. No known workarounds are available.