CVE-2019-9637
UnknownEPSS 7.15%
Last modified
CVE-2019-9637 is a vulnerability of currently unknown severity. An issue was discovered in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before 7.3.3. Due to the way rename() across filesystems is implemented, it is possible that file being renamed is briefly available with wrong permissions while the rename is ongoing, thus enabling unauthorized users to access the data.. EPSS estimates a 7.15% chance of exploitation in the next 30 days.
Description
An issue was discovered in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before 7.3.3. Due to the way rename() across filesystems is implemented, it is possible that file being renamed is briefly available with wrong permissions while the rename is ongoing, thus enabling unauthorized users to access the data.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | < 7.1.27 |
| Php | Php | >= 7.2.0, < 7.2.16 |
| Php | Php | >= 7.3.0, < 7.3.3 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Opensuse | Leap | 42.3 |
| Netapp | Storage Automation Store | All versions |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.htmlMailing List, Third Party Advisory
- https://bugs.php.net/bug.php?id=77630Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00043.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190502-0007/Third Party Advisory
- https://support.f5.com/csp/article/K53825211Third Party Advisory
- https://usn.ubuntu.com/3922-1/Third Party Advisory
- https://usn.ubuntu.com/3922-2/Third Party Advisory
- https://usn.ubuntu.com/3922-3/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4403Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.htmlMailing List, Third Party Advisory
- https://bugs.php.net/bug.php?id=77630Issue Tracking, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00043.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190502-0007/Third Party Advisory
- https://support.f5.com/csp/article/K53825211Third Party Advisory
- https://usn.ubuntu.com/3922-1/Third Party Advisory
- https://usn.ubuntu.com/3922-2/Third Party Advisory
- https://usn.ubuntu.com/3922-3/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4403Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-9637?
An issue was discovered in PHP before 7.1.27, 7.2.x before 7.2.16, and 7.3.x before 7.3.3. Due to the way rename() across filesystems is implemented, it is possible that file being renamed is briefly available with wrong permissions while the rename is ongoing, thus enabling unauthorized users to access the data.
How severe is CVE-2019-9637?
Severity scoring for CVE-2019-9637 is pending analysis. The EPSS model estimates a 7.15% probability of exploitation in the next 30 days.
How do I fix CVE-2019-9637?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-9637?
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Scan your code nowSource: NVD / NIST