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samedi 9 février 2019

Binaryen 1.38.22 wasm-binary.cpp visitCall denial of service

A vulnerability, which was classified as problematic, has been found in Binaryen 1.38.22. This issue affects the function wasm::WasmBinaryBuilder::visitCall of the file wasm-binary.cpp. The manipulation with an unknown input leads to a denial of service vulnerability (Use-After-Free). Using CWE to declare the problem leads to CWE-404. Impacted is availability. The summary by CVE is:

In Binaryen 1.38.22, there is a use-after-free problem in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp. Remote attackers could leverage this vulnerability to cause a denial-of-service via a wasm file, as demonstrated by wasm-merge.

The weakness was disclosed 02/10/2019. The identification of this vulnerability is CVE-2019-7703 since 02/10/2019. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/11/2019).

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

The entries 130724, 130725, 130726 and 130728 are pretty similar.



VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: ≈3.5
VulDB Temp Score: ≈3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍


VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Denial of service / Use-After-Free (CWE-404)
Local: Yes
Remote: No

Availability: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligence

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Actions: 🔍


Recommended: no mitigation known
0-Day Time: 🔒


02/10/2019 Advisory disclosed
02/10/2019 CVE assigned
02/11/2019 VulDB entry created
02/11/2019 VulDB last update


CVE: CVE-2019-7703 (🔒)
See also: 🔒


Created: 02/11/2019
Complete: 🔍

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Auteur: VulDB

Catégories: VulDBNombre de vues: 197


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