What’s Vulnerable › Vulnerabilities
CVE-2019-11048: Temporary files are not cleaned after OOM when parsing HTTP request data
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 6.3% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-05-20 · updated 2026-06-17
- Weakness: CWE-190
Description
In PHP versions 7.2.x below 7.2.31, 7.3.x below 7.3.18 and 7.4.x below 7.4.6, when HTTP file uploads are allowed, supplying overly long filenames or field names could lead PHP engine to try to allocate oversized memory storage, hit the memory limit and stop processing the request, without cleaning up temporary files created by upload request. This potentially could lead to accumulation of uncleaned temporary files exhausting the disk space on the target server.
Affected products
- PHP: from 7.2.0 before 7.2.31; from 7.3.0 before 7.3.18; from 7.4.0 before 7.4.6 — fixed in 7.2.31, 7.3.18, 7.4.6
How to fix
Upgrade to a fixed version: PHP 7.2.31, 7.3.18, 7.4.6. Check the vendor advisory for mitigations.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00045.html
- https://bugs.php.net/bug.php?id=78875
- https://bugs.php.net/bug.php?id=78876
- https://lists.debian.org/debian-lts-announce/2020/06/msg00033.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBA3TFZSP3TB5N4G24SO6BI64RJZXE3D/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMDUQ7XFONY3BWTAQQUD3QUGZT6NFZUF/
- https://security.netapp.com/advisory/ntap-20200528-0006/
- https://usn.ubuntu.com/4375-1/
- https://www.debian.org/security/2020/dsa-4717
- https://www.debian.org/security/2020/dsa-4719
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
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