An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. A heap-based buffer over-read in PHAR reading functions in the PHAR extension may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse the file name, a different vulnerability than CVE-2018-20783. This is related to phar_detect_phar_fname_ext in ext/phar/phar.c.
Published 2019-02-22 23:29:00
Updated 2019-06-18 18:15:12
Source MITRE
View at NVD,   CVE.org

Threat overview for CVE-2019-9021

Top countries where our scanners detected CVE-2019-9021
Top open port discovered on systems with this issue 80
IPs affected by CVE-2019-9021 587,296
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2019-9021!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2019-9021

1.32%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-9021

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2019-9021

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-9021

Products affected by CVE-2019-9021

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