CVE-2015-3217

High

Description

PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.

SeverityHigh
CVSS7.5
Exploit probability—
ProductPcre2
PublishedDec 13, 2016
First seenDec 13, 2016

How to fix

Affected products

ProductAffected versionsFixed in
pcre pcre210.10—
pcre pcre7.8, 8.32, 8.33, 8.34, 8.35, 8.36, 8.37—
ibm powerkvm2.1, 3.1—

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