Vulnerability 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 Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pcre | Pcre | < 8.43 |
| Apple | Macos | < 11.0.1 |
| Splunk | Universal Forwarder | >= 8.2.0, < 8.2.12 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/14Mailing ListThird Party Advisory
- https://bugs.gentoo.org/717920Issue TrackingPatchThird Party Advisory
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430Mailing ListThird Party Advisory
- https://support.apple.com/kb/HT211931Vendor Advisory
- https://support.apple.com/kb/HT212147Vendor Advisory
- https://www.pcre.org/original/changelog.txtRelease NotesVendor Advisory
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/14Mailing ListThird Party Advisory
- https://bugs.gentoo.org/717920Issue TrackingPatchThird Party Advisory
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430Mailing ListThird Party Advisory
- https://support.apple.com/kb/HT211931Vendor Advisory
- https://support.apple.com/kb/HT212147Vendor Advisory
- https://www.pcre.org/original/changelog.txtRelease NotesVendor Advisory
FAQ
What is CVE-2019-20838?
CVE-2019-20838 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2019-20838?
CVE-2019-20838 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-20838?
Check the references section above for vendor advisories and patch information. Affected products include: Pcre Pcre, Apple Macos, Splunk Universal Forwarder.