CVE-2016-6296

UnknownEPSS 6.27%

Last modified

CVE-2016-6296 is a vulnerability of currently unknown severity. Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.. EPSS estimates a 6.27% chance of exploitation in the next 30 days.

Description

Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.

Metrics

EPSS Probability
6.27%

92.7th 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-2016-6296?
Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.
How severe is CVE-2016-6296?
Severity scoring for CVE-2016-6296 is pending analysis. The EPSS model estimates a 6.27% probability of exploitation in the next 30 days.
How do I fix CVE-2016-6296?
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-2016-6296?

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

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Source: NVD / NIST