CVE-2020-7068

Use of freed hash key in the phar_parse_zipfile function

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.

Affected

PHP Group · PHP

CVSS v3.1 NVD

3.6 LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L

CVSS v3.1 PHP

4.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS v2.0 NVD

3.3 LOWAV:L/AC:M/Au:N/C:P/I:N/A:P

EPSS

1.66% chance of exploitation in the next 30 days, 76th percentile

Published

2020-09-09

Updated

2024-09-17

Proof-of-concept exploits (1)

• https://bugs.php.net/bug.php?id=79797

Security advisories

• https://security.gentoo.org/glsa/202009-10
• https://security.netapp.com/advisory/ntap-20200918-0005
• https://www.debian.org/security/2021/dsa-4856
• https://www.tenable.com/security/tns-2021-14

References

• CVE Record
• NVD entry