CVE-2016-1283
pcre: heap buffer overflow in handling of duplicate named groups (8.39/14)
Severity
ImportantRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · January 4, 2016
Updated · August 5, 2026
Description
The pcre_compile2 function in pcre_compile.c in PCRE 8.38 mishandles the /((?:F?+(?:^(?(R)a+"){99}-))(?J)(?'R'(?'R'<((?'RR'(?'R'){97)?J)?J)(?'R'(?'R'){99|(:(?|(?'R')(\k'R')|((?'R')))H'R'R)(H'R))))))/ pattern and related patterns with named subgroups, which allows remote attackers to cause a denial of service (heap-based buffer overflow) 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 · 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-122 · Heap-based Buffer Overflow