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Sources : US Cert, Cert EU, Cert FR, Cnil, VulDB.

dimanche 10 février 2019

Binaryen 1.38.22 wasm-s-parser.cpp parseExpression denial of service

A vulnerability classified as problematic was found in Binaryen 1.38.22. This vulnerability affects the function wasm::SExpressionWasmBuilder::parseExpression of the file wasm-s-parser.cpp. The manipulation with an unknown input leads to a denial of service vulnerability (NULL Pointer Dereference). The CWE definition for the vulnerability is CWE-476. As an impact it is known to affect availability. CVE summarizes:

A NULL pointer dereference was discovered in wasm::SExpressionWasmBuilder::parseExpression in wasm-s-parser.cpp in Binaryen 1.38.22. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.

The weakness was released 02/10/2019. This vulnerability was named CVE-2019-7702 since 02/10/2019. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of 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.

Entries connected to this vulnerability are available at 130724, 130725, 130727 and 130728.

CPE

CVSSv3

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: 🔍

CVSSv2

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

Exploiting

Class: Denial of service / NULL Pointer Dereference (CWE-476)
Local: Yes
Remote: No

Availability: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligence

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

Countermeasures

Recommended: no mitigation known
0-Day Time: 🔒

Timeline

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

Sources

CVE: CVE-2019-7702 (🔒)
See also: 🔒

Entry

Created: 02/11/2019
Complete: 🔍

Lien vers l'article source

Auteur: VulDB

Catégories: VulDBNombre de vues: 46

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