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Bug 1488491 - (CVE-2017-9804) CVE-2017-9804 struts: A regular expression Denial of Service when using URLValidator
CVE-2017-9804 struts: A regular expression Denial of Service when using URLVa...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170905,repor...
: Security
Depends On:
Blocks:
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Reported: 2017-09-05 10:05 EDT by Adam Mariš
Modified: 2017-09-05 10:06 EDT (History)
28 users (show)

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Fixed In Version: struts 2.5.13, struts 2.3.34
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Last Closed: 2017-09-05 10:06:12 EDT
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Description Adam Mariš 2017-09-05 10:05:26 EDT 
The previous fix issued with S2-047 (CVE-2017-7672) was incomplete. If an application allows enter an URL in a form field and built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL.

Affected versions:

Struts 2.3.7 - Struts 2.3.33, Struts 2.5 - Struts 2.5.12

External References:

https://struts.apache.org/docs/s2-050.html
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