CVE-2020-14155

pcre: Integer overflow when parsing callout numeric arguments

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Severity

Low

Red Hat Product Security

5.3

CVSS 3.1

Review impact separately from score.

Published · June 15, 2020

Updated · October 9, 2026

Description

libpcre in PCRE before 8.44 allows an integer overflow via a large number after a (?C substring.

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

This flaw can be mitigated by not compiling regular expressions with a callout value greater outside of 0-255 or handling the value passed to the callback within the application code.

CVSS / CWE

CVSS 3.1 · 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE-190 · Integer Overflow or Wraparound