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

samedi 9 février 2019

Binaryen 1.38.22 wasm-s-parser.cpp skipWhitespace() memory corruption

A vulnerability classified as critical has been found in Binaryen 1.38.22. This affects the function wasm::SExpressionParser::skipWhitespace() of the file wasm-s-parser.cpp. The manipulation with an unknown input leads to a memory corruption vulnerability (Heap-based). CWE is classifying the issue as CWE-122. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A heap-based buffer over-read was discovered in wasm::SExpressionParser::skipWhitespace() 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 wasm2js.

The weakness was published 02/10/2019. This vulnerability is uniquely identified as CVE-2019-7701 since 02/10/2019. Technical details are known, but no exploit is available. The price 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.

Similar entries are available at 130724, 130726, 130727 and 130728.

CPE

CVSSv3

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: ≈5.5
VulDB Temp Score: ≈5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2

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

Exploiting

Class: Memory corruption / Heap-based (CWE-122)
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-2019-7701 (🔒)
See also: 🔒

Entry

Created: 02/11/2019
Complete: 🔍

Lien vers l'article source

Auteur: VulDB

Catégories: VulDBNombre de vues: 143

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Événements SSI

FIC

Ayant pour thème cette année "Replacer l'humain au coeur de la cybersécurité", le Forum International de la Cybersécurité occupe les 28, 29 et 30 janvier 2020 le Grand Palais de Lille. Organisé par la Région Hauts-de-France et Euratechnologies, la Gendarmerie Nationale et CEIS.

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