CVE-2020-11958

nvd nist

Published: Apr 21, 2020Modified: Jun 17, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

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

Affected (3)

Products: Re2c: Re2c · Canonical: Ubuntu Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Re2c Re2c	Version 1.3

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 19.10
Canonical Ubuntu Linux	Version 20.04

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (14)

http://www.openwall.com/lists/oss-security/2020/04/21/1

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://blogs.gentoo.org/ago/2020/04/19/re2c-heap-overflow-in-scannerfill-scanner-cc/

Source: cve@mitre.org

Third Party Advisory

https://github.com/skvadrik/re2c/commit/c4603ba5ce229db83a2a4fb93e6d4b4e3ec3776a

Source: cve@mitre.org

PatchThird Party Advisory

https://security.gentoo.org/glsa/202007-28

Source: cve@mitre.org

Third Party Advisory

https://usn.ubuntu.com/4338-1/

Source: cve@mitre.org

Third Party Advisory

https://usn.ubuntu.com/4338-2/

Source: cve@mitre.org

Third Party Advisory

https://www.openwall.com/lists/oss-security/2020/04/19/1

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2020/04/21/1