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Notre sélection d'alertes et avis SSI.
Sources : US Cert, Cert EU, Cert FR, Cnil, VulDB.

lundi 29 octobre 2018

Apple Safari up to 12.0 WebKit memory corruption

A vulnerability classified as critical was found in Apple Safari up to 12.0. This vulnerability affects an unknown function of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 10/29/2018 by ngg, alippai, DirtYiCE and KT as HT209196 as confirmed advisory (Website) via ZDI (Zero Day Initiative). The advisory is available at support.apple.com. This vulnerability was named CVE-2018-4373. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/31/2018). The advisory points out:

Multiple memory corruption issues were addressed with improved memory handling.

Upgrading to version 12.0.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 126186, 126223, 126237 and 126250 are pretty similar.

CPE

CVSSv3

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2

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

Exploiting

Class: Memory corruption (CWE-119)
Local: No
Remote: Yes

Availability: No

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligence

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

Countermeasures

Recommended: Upgrade
Status: Official fix
Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Upgrade: Safari 12.0.1

Timeline

10/29/2018 Advisory disclosed
10/29/2018 Countermeasure disclosed
10/31/2018 VulDB entry created
10/31/2018 VulDB last update

Sources

Advisory: HT209196
Researcher: ngg/alippai/DirtYiCE/KT
Status: Confirmed

CVE: CVE-2018-4373 (🔒)
See also: 🔒

Entry

Created: 10/31/2018
Complete: 🔍

Lien vers l'article source

Auteur: VulDB

Catégories: VulDBNombre de vues: 156

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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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