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CVE-2023-0568

Public on 2023-02-16
Modified on 2024-01-12
Description

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, core path resolution function allocate buffer one byte too small. When resolving paths with lengths close to system MAXPATHLEN setting, this may lead to the byte after the allocated buffer being overwritten with NUL value, which might lead to unauthorized data access or modification.

Severity
Important
See what this means
CVSS v3 Base Score
7.5
See breakdown
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Php8.0 Extra php 2023-08-21 21:00 ALAS2PHP8.0-2023-002
Amazon Linux 2 - Php8.1 Extra php 2023-08-21 21:00 ALAS2PHP8.1-2023-002
Amazon Linux 2 - Php8.2 Extra php 2023-08-04 21:33 ALAS2PHP8.2-2023-001
Amazon Linux 2023 php8.1 2023-03-20 18:27 ALAS2023-2023-139

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD CVSSv3 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2023-0568 Mitre: CVE-2023-0568 FAQs regarding Amazon Linux ALAS/CVE Severity