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CVE-2017-7957 is an improper input validation vulnerability in XStream through version 1.4.9. When unmarshalling attacker-controlled XML type information, XStream can mishandle an attempt to instantiate the primitive void type. Because void cannot have an instance, a crafted input such as a void element can cause the consuming application to crash. The issue is avoided when the applicable denyTypes workaround is configured.
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denyTypes protection to reject the primitive void type, and do not unmarshal untrusted XML or attacker-controlled serialized data. Restrict access to interfaces that accept XStream input where processing untrusted input cannot be avoided.Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An XStream denial-of-service vulnerability in which parsing crafted input containing instances of the primitive void type can crash the application.
An XStream denial-of-service vulnerability in which unmarshalling crafted input containing the primitive type void can crash the affected application.
An XStream denial-of-service vulnerability triggered when unmarshalling crafted input containing the primitive void type.
A denial-of-service vulnerability in XStream unmarshalling. Attacker-manipulated serialized input that specifies the primitive void type can crash the application.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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