CVE-2025-47947

Publication date 21 May 2025

Last updated 16 June 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
modsecurity 25.04 plucky
Not affected
24.10 oracular
Not affected
24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected
20.04 LTS focal
Not affected
modsecurity-apache 25.04 plucky
Fixed 2.9.8-1.1ubuntu0.1
24.10 oracular
Fixed 2.9.7-1ubuntu0.24.10.1
24.04 LTS noble
Fixed 2.9.7-1ubuntu0.24.04.1~esm1
22.04 LTS jammy
Fixed 2.9.5-1ubuntu0.1~esm2
20.04 LTS focal
Fixed 2.9.3-1ubuntu0.1+esm1
18.04 LTS bionic
Fixed 2.9.2-1ubuntu0.1~esm2
16.04 LTS xenial
Fixed 2.9.0-1ubuntu0.1~esm2
14.04 LTS trusty
Fixed 2.7.7-2ubuntu0.1~esm2

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Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H