CVE-2019-20838 — Out-of-bounds Read in Pcre
Severity
7.5HIGHNVD
EPSS
0.3%
top 46.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 15
Latest updateMay 24
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages3 packages
Patches
🔴Vulnerability Details
4📋Vendor Advisories
5Apple▶
CVE-2019-20838: macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave↗2021-02-01
Red Hat▶
pcre: Buffer over-read in JIT when UTF is disabled and \X or \R has fixed quantifier greater than 1↗2020-06-15
Microsoft▶
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.↗2020-06-09
Debian▶
CVE-2019-20838: pcre3 - libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is...↗2019