Out-of-bounds Read in Pcre Pcre2
CVE-2019-20454
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…
Vulnerability class: Buffer Overflow
EPSS: 0.016 (72.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Pcre Pcre2
- Splunk Universal_forwarder — versions 9.1.0
- Fedoraproject Fedora — versions 31
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Permissions Required, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Patch, Broken Link)
- cve@mitre.org (Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20454?
- CVE-2019-20454 is a high-severity vulnerability in Pcre Pcre2, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2020-02-14.
- How severe is CVE-2019-20454?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-20454 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.