#VU30256 Out-of-bounds read in PCRE - CVE-2019-20838 

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Main Vulnerability Database Vulnerabilities #VU30256

#VU30256 Out-of-bounds read in PCRE - CVE-2019-20838

Published: June 15, 2020 / Updated: October 2, 2024


Vulnerability identifier: #VU30256
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-20838
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
PCRE
Software vendor:
PCRE

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

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.


Remediation

Install update from vendor's website.

External links