VulnerabilityModified
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.
HIGH 7.5EPSS 2.77%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.77% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- pcre/pcre · apple/macos · splunk/universal forwarder
- Source
- cve@mitre.org
References
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/14Mailing List, Third Party Advisory
- https://bugs.gentoo.org/717920Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3EMailing List, Third Party Advisory
- https://support.apple.com/kb/HT211931Vendor Advisory
- https://support.apple.com/kb/HT212147Vendor Advisory
- https://www.pcre.org/original/changelog.txtRelease Notes, Vendor Advisory
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Feb/14Mailing List, Third Party Advisory
- https://bugs.gentoo.org/717920Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3EMailing List, Third Party Advisory
- https://support.apple.com/kb/HT211931Vendor Advisory
- https://support.apple.com/kb/HT212147Vendor Advisory
- https://www.pcre.org/original/changelog.txtRelease Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.