Samsung Mobile Devices L(5.x)/M(6.0)/N(7.x) vnswap_deinit_backing_storage race condition

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Samsung Mobile Devices L(5.x)/M(6.0)/N(7.x). Impacted is an unknown function of the component vnswap_deinit_backing_storage. The manipulation results in race condition. This vulnerability is identified as CVE-2018-21085. The attack can be executed remotely. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Samsung Mobile Devices L(5.x)/M(6.0)/N(7.x) (Smartphone Operating System). It has been classified as critical. Affected is an unknown functionality of the component vnswap_deinit_backing_storage. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered on Samsung mobile devices with L(5.x), M(6.0), and N(7.x) software. There is a race condition with a resultant use-after-free in vnswap_deinit_backing_storage. The Samsung ID is SVE-2017-11176 (February 2018).

The weakness was released 04/08/2020 (Website). The advisory is shared for download at security.samsungmobile.com. This vulnerability is traded as CVE-2018-21085 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.

Entries connected to this vulnerability are available at VDB-111342, VDB-111380, VDB-115287 and VDB-115285. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

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

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/07/2020 🔍
04/08/2020 +1 days 🔍
04/09/2020 +1 days 🔍
10/09/2020 +183 days 🔍

Sourcesinfo

Vendor: samsung.com

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

CVE: CVE-2018-21085 (🔍)
GCVE (CVE): GCVE-0-2018-21085
GCVE (VulDB): GCVE-100-152916
See also: 🔍

Entryinfo

Created: 04/09/2020 09:24
Updated: 10/09/2020 07:06
Changes: 04/09/2020 09:24 (39), 04/09/2020 09:29 (18), 10/09/2020 07:06 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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