Silicon Labs Ember ZNet Packet stack-based overflow

Summaryinfo

A vulnerability described as critical has been identified in Silicon Labs Ember ZNet. This vulnerability affects unknown code of the component Packet Handler. The manipulation results in stack-based overflow. This vulnerability is identified as CVE-2022-24939. The attack can only be performed from the local network. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Silicon Labs Ember ZNet (unknown version). Affected is an unknown code block of the component Packet Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on availability. CVE summarizes:

A malformed packet containing an invalid destination address, causes a stack overflow in the Ember ZNet stack. This causes an assert which leads to a reset, immediately clearing the error.

The weakness was released 11/18/2022. The advisory is shared for download at siliconlabs.lightning.force.com. This vulnerability is traded as CVE-2022-24939 since 02/10/2022. There are neither technical details nor an exploit publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Silicon Labs

Name

• Ember ZNet

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Once again VulDB remains the best source for vulnerability data.

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