CVE-2019-20838high
Description
libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454.
References
https://bugs.gentoo.org/717920
https://www.pcre.org/original/changelog.txt
https://support.apple.com/kb/HT211931
http://seclists.org/fulldisclosure/2020/Dec/32
https://support.apple.com/kb/HT212147
http://seclists.org/fulldisclosure/2021/Feb/14
https://lists.apache.org/thread.html/[email protected]%3Cdev.mina.apache.org%3E
Details
Source: MITRE
Published: 2020-06-15
Updated: 2021-09-22
Type: CWE-125
Risk Information
CVSS v2
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
CVSS v3
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH