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prionPRIOn knowledge basePRION:CVE-2017-8923
HistoryMay 12, 2017 - 8:29 p.m.

Design/Logic Flaw

2017-05-1220:29:00
PRIOn knowledge base
www.prio-n.com
9

9.8 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.4%

The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact by leveraging a script’s use of .= with a long string.

CPENameOperatorVersion
phpge8.0.0
phplt8.0.11
phplt7.4.24

9.8 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.4%