Samsung Mobile Devices N(7.x)/O(8.x) Trustlet out-of-bounds write

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8.2$0-$5k0.00

A vulnerability was found in Samsung Mobile Devices N(7.x)/O(8.x) (Smartphone Operating System). It has been classified as critical. Affected is an unknown function of the component Trustlet. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-787. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered on Samsung mobile devices with N(7.x) and O(8.X) (Exynos chipsets) software. There is an arbitrary memory write in a Trustlet because a secure driver allows access to sensitive APIs. The Samsung ID is SVE-2018-12881 (November 2018).

The weakness was published 04/08/2020 (Website). The advisory is shared for download at security.samsungmobile.com. This vulnerability is traded as CVE-2018-21049 since 04/07/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

Applying a patch is able to eliminate this problem.

Similar entries are available at 111342, 111380, 115287 and 115285.

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VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

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

NVD Base Score: 🔒

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-787
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

04/07/2020 CVE assigned
04/08/2020 +1 days Advisory disclosed
04/09/2020 +1 days VulDB entry created
10/07/2020 +181 days VulDB last update

Sourcesinfoedit

Vendor: https://www.samsung.com/

Advisory: security.samsungmobile.com
Status: Not defined
Confirmation: 🔒

CVE: CVE-2018-21049 (🔒)
See also: 🔒

Entryinfoedit

Created: 04/09/2020 08:55 AM
Updated: 10/07/2020 04:34 PM
Changes: (1) advisory_confirm_url
Complete: 🔍

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