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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

EPSS Probability
7.15%

93.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhpPhp< 7.1.27
PhpPhp>= 7.2.0, < 7.2.16
PhpPhp>= 7.3.0, < 7.3.3
DebianDebian Linux8.0
DebianDebian Linux9.0
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux18.10
OpensuseLeap42.3
NetappStorage Automation StoreAll versions

References

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.

Are you affected by CVE-2019-9637?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST