CVE-2019-9021
CVSS v3
9.8
CRITICAL
EPSS Score
30.0 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2019-02-22
Frequently asked questions
What is CVE-2019-9021?
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.
Is CVE-2019-9021 actively exploited?
Active exploitation of CVE-2019-9021 has not been confirmed. The EPSS score is 30.0%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-9021?
CVE-2019-9021 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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