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lundi 29 octobre 2018

Apple Safari up to 12.0 WebKit memory corruption

A vulnerability classified as critical has been found in Apple Safari up to 12.0. This affects an unknown function of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 10/29/2018 by HyungSeok Han, DongHyeon Oh and Sang Kil Cha as HT209196 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2018-4372. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around 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.

Entries connected to this vulnerability are available at 126185, 126203, 126222 and 126236.

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: HyungSeok Han/DongHyeon Oh/Sang Kil Cha
Status: Confirmed

CVE: CVE-2018-4372 (🔒)
See also: 🔒

Entry

Created: 10/31/2018
Complete: 🔍

Lien vers l'article source

Auteur: VulDB

Catégories: VulDBNombre de vues: 153

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