VDB-101411 · CVE-2015-8997 · BID 97329

Google Android TrustZone race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Google Android. This affects an unknown part of the component TrustZone. The manipulation leads to race condition. This vulnerability is documented as CVE-2015-8997. The attack needs to be performed locally. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (affected version not known). It has been rated as problematic. This issue affects some unknown functionality of the component TrustZone. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In TrustZone a time-of-check time-of-use race condition could potentially exist in a listener routine in all Android releases from CAF using the Linux kernel.

The bug was discovered 04/01/2017. The weakness was released 05/16/2017 (Website). It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2015-8997 since 03/01/2017. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 45 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 97329†). Entries connected to this vulnerability are available at VDB-99354, VDB-99375, VDB-99376 and VDB-99383. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
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: Partially
Local: Yes
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/01/2017 🔍
04/01/2017 +31 days 🔍
04/03/2017 +2 days 🔍
05/16/2017 +43 days 🔍
05/16/2017 +0 days 🔍
05/17/2017 +1 days 🔍
12/24/2020 +1317 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8997 (🔍)
GCVE (CVE): GCVE-0-2015-8997
GCVE (VulDB): GCVE-100-101411
SecurityFocus: 97329 - Google Android Qualcomm components Multiple Unspecified Security Vulnerabilities
OSVDB: - CVE-2015-8997 - Google - Android - High
SecurityTracker: 1038201

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 05/17/2017 07:59
Updated: 12/24/2020 14:40
Changes: 05/17/2017 07:59 (66), 12/24/2020 14:40 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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