CVE-2020-11958

re2c: heap-based buffer overflow in Scanner::fill in parse/scanner.cc

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Severity

Moderate

Red Hat Product Security

2.8

CVSS 3.1

Review impact separately from score.

Published · April 17, 2020

Updated · November 21, 2025

Description

re2c 1.3 has a heap-based buffer overflow in Scanner::fill in parse/scanner.cc via a long lexeme.

Statement

This flaw was tested and does not affect any version of Red Hat Enterprise Linux. The vulnerable code was introduced in a version that is not in the Red Hat Enterprise Linux repositories.

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 3.1 · 2.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

CWE-122 · Heap-based Buffer Overflow