High severity · published Jun 15, 2020
CVE-2019-20838
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
7.5
CVSS
2.8%
EPSS
No
On KEV
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:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 11.0.1 · source: NVD
PC
Pcre · Pcre
before 8.43 · source: NVD
UF
Universal Forwarder · Splunk
8.2.0 before 8.2.12; 9.0.0 before 9.0.6; 9.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-20838
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-20838
Mailing List
http://seclists.org/fulldisclosure/2020/Dec/32
Mailing List
http://seclists.org/fulldisclosure/2021/Feb/14
Issue Tracking
https://bugs.gentoo.org/717920
Mailing List
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
Vendor Advisory
https://support.apple.com/kb/HT211931
Vendor Advisory
https://support.apple.com/kb/HT212147
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