CVE catalog
CVE-2020-7065
UBUNTU-CVE-2020-7065
- Severity
- High · CVSS 8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 4.88% · Oct 25, 2026
In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | php7.4 | 11 | 7.4.5-1 | fixed |
| Ubuntu | php7.4 | 20.04 | 7.4.3-4build1 | vulnerable |
| Ubuntu | php7.4 | 20.04 | 7.4.3-4build2 | vulnerable |
| Ubuntu | php7.4 | 20.04 | 7.4.3-4ubuntu1 | vulnerable |
| Ubuntu | php7.4 | 20.04 | 7.4.3-4ubuntu1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | php7.4 | deb | 11 | 7.4.5-1 | Not reported | DEBIAN-CVE-2020-7065 | Not reported |
| Ubuntu | php7.4 | deb | 20.04 | 7.4.3-4ubuntu1.1 | Not reported | UBUNTU-CVE-2020-7065 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2020_3662.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-7065]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-7065]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-7065.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]