CVE-2016-6290

UnknownEPSS 5.48%

Last modified

CVE-2016-6290 is a vulnerability of currently unknown severity. ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data structure, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors related to session deserialization.. EPSS estimates a 5.48% chance of exploitation in the next 30 days.

Description

ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data structure, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors related to session deserialization.

Metrics

EPSS Probability
5.48%

91.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
PhpPhp<= 5.5.37
PhpPhp5.6.0Alpha1
PhpPhp5.6.1
PhpPhp5.6.2
PhpPhp5.6.3
PhpPhp5.6.4
PhpPhp5.6.5
PhpPhp5.6.6
PhpPhp5.6.7
PhpPhp5.6.8
PhpPhp5.6.9
PhpPhp5.6.10
PhpPhp5.6.11
PhpPhp5.6.12
PhpPhp5.6.13
PhpPhp5.6.14
PhpPhp5.6.15
PhpPhp5.6.16
PhpPhp5.6.17
PhpPhp5.6.18
PhpPhp5.6.19
PhpPhp5.6.20
PhpPhp5.6.21
PhpPhp5.6.22
PhpPhp5.6.23
PhpPhp7.0.0
PhpPhp7.0.1
PhpPhp7.0.2
PhpPhp7.0.3
PhpPhp7.0.4
PhpPhp7.0.5
PhpPhp7.0.8

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-6290?
ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data structure, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors related to session deserialization.
How severe is CVE-2016-6290?
Severity scoring for CVE-2016-6290 is pending analysis. The EPSS model estimates a 5.48% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6290?
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-2016-6290?

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

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Source: NVD / NIST