Описание
REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability.
A vulnerability was found in REXML RubyGems. This package is vulnerable to denial of service (DoS) when parsing a deep XML structure with the same local name attribute. This vulnerability only affects tree parser API like REXML::Document.new, other parser APIs such as stream parser API and SAX2 parser API are not affected.
Отчет
Moderate impact: Red Hat products in the current affected scope, including Red Hat Enterprise Linux and other products that ship the vulnerable REXML component, can be exposed to denial of service when an attacker supplies deeply nested XML with repeated local-name attributes to REXML's tree parser, such as REXML::Document.new. The recorded CVSS 3.1 score is 5.9 (AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H), matching the upstream Moderate assessment and indicating availability impact without confidentiality or integrity impact. Stream parser and SAX2 parser APIs are not affected. The current affects data marks RHEL 10 not affected because the vulnerable code is not present. For delegated affects marked AFFECTED, the owning product teams are pursuing a fix; delegated WONTFIX affects have no fix recorded. The RHEL 9.6 ruby:3.1 affect is marked DEFER, so the fix is deferred for that stream and the residual risk remains denial of service when untrusted XML reaches the affected tree-parser path.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat 3scale API Management Platform 2 | 3scale-amp2/backend-rhel8 | Will not fix | ||
| Red Hat 3scale API Management Platform 2 | 3scale-amp2/system-rhel7 | Will not fix | ||
| Red Hat 3scale API Management Platform 2 | 3scale-amp2/toolbox-rhel8 | Will not fix | ||
| Red Hat 3scale API Management Platform 2 | 3scale-amp2/zync-rhel8 | Will not fix | ||
| Red Hat Enterprise Linux 10 | ruby | Not affected | ||
| Red Hat Enterprise Linux 10 | ruby:3.3/ruby | Not affected | ||
| Red Hat Enterprise Linux 8 | ruby | Will not fix | ||
| Red Hat Enterprise Linux 8 | ruby:2.5/ruby | Will not fix | ||
| Red Hat Enterprise Linux 9 | pcs | Will not fix | ||
| Red Hat Enterprise Linux 9 | ruby | Will not fix |
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Дополнительная информация
Статус:
EPSS
5.9 Medium
CVSS3
Связанные уязвимости
REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability.
REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML gem 3.3.6 or later include the patch to fix the vulnerability.
REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS ...
EPSS
5.9 Medium
CVSS3