CVE-2015-8391
pcre: inefficient posix character class syntax check (8.38/16)
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · November 23, 2015
Updated · August 5, 2026
Description
The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 4.3AV:N/AC:M/Au:N/C:N/I:N/A:P
CWE-407 · Inefficient Algorithmic Complexity