Описание
In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.
Отчет
This issue affects the versions of tika which is embedded in the nutch package as shipped with Red Hat Satellite 5. The tika server is not exposed, as such exploitation is difficult, Red Hat Product Security has rated this issue as having security impact of Low. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat BPM Suite 6 | tika-core | Out of support scope | ||
| Red Hat JBoss BRMS 5 | tika-core | Out of support scope | ||
| Red Hat JBoss BRMS 6 | tika-core | Out of support scope | ||
| Red Hat JBoss Data Virtualization 6 | tika-core | Out of support scope | ||
| Red Hat JBoss Fuse Service Works 6 | tika-core | Out of support scope | ||
| Red Hat Satellite 5 | tika | Will not fix | ||
| Red Hat Software Collections | rh-eclipse46-tika | Not affected | ||
| Red Hat Fuse 7.5.0 | camel-tika | Fixed | RHSA-2019:3892 | 14.11.2019 |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.
In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.
In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion lim ...
Apache Tika is vulnerable to entity expansions which can lead to a denial of service attack
EPSS
7.5 High
CVSS3