CVE-2020-11958

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

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://blogs.gentoo.org/ago/2020/04/19/re2c-heap-overflow-in-scannerfill-scanner-cc/	Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/04/19/1	Mailing List Third Party Advisory
https://github.com/skvadrik/re2c/commit/c4603ba5ce229db83a2a4fb93e6d4b4e3ec3776a	Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/04/21/1	Mailing List Third Party Advisory
https://usn.ubuntu.com/4338-1/	Third Party Advisory
https://usn.ubuntu.com/4338-2/	Third Party Advisory
https://security.gentoo.org/glsa/202007-28	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:re2c:re2c:1.3:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::

Information

Published : 2020-04-20 18:15

Updated : 2023-01-27 10:38

NVD link : CVE-2020-11958

Mitre link : CVE-2020-11958

JSON object : View

CWE

CWE-787

Out-of-bounds Write

Products Affected

canonical

ubuntu_linux

re2c

re2c

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7.8 /10