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CVE-2019-20454

nvd nist
Published: Feb 14, 2020Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.

Affected (5)

1 product
Pcre2
1 product
Fedora
1 product
Universal Forwarder
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
From 10.31 to 10.34
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Version 31
Configuration C
3 vulnerable
Vulnerable SoftwareAffected Versions
Splunk
From 8.2.0 to 8.2.12
From 9.0.0 to 9.0.6
Version 9.1.0

References (14)

Source: cve@mitre.org
Issue TrackingPermissions RequiredThird Party Advisory
Source: cve@mitre.org
ExploitIssue TrackingThird Party Advisory
Source: cve@mitre.org
Issue TrackingPatchThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Broken LinkPatch
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPermissions RequiredThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkPatch

Timeline

No history available yet.