Use After Free in Php
CVE-2020-7068
In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to a crash or information disclosure.
Vulnerability class: Use-After-Free
EPSS: 0.017 (74.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L.
Affected products
- Php
- Php Group — versions 7.3.x, 7.4.x, 7.2.x
- Tenable Tenable.sc
- Debian Debian_linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@php.net (Exploit, Patch, Mailing List, x_refsource_MISC, Vendor Advisory)
- security@php.net (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@php.net (x_refsource_CONFIRM, Third Party Advisory)
- security@php.net (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- security@php.net (x_refsource_CONFIRM, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7068?
- CVE-2020-7068 is a medium-severity vulnerability in Php, classified under Use After Free. CVSS score: 4.8/10. Published 2020-09-09.
- How severe is CVE-2020-7068?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2020-7068 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.