Google Android bus.c driver_override_store/driver_override_show double free

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability has been found in Google Android (Smartphone Operating System) (affected version not known) and classified as critical. Affected by this vulnerability is the function driver_override_store/driver_override_show of the file bus.c. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In driver_override_store and driver_override_show of bus.c, there is a possible double free due to improper locking. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-69129004 References: Upstream kernel.

The bug was discovered 07/03/2018. The weakness was shared 11/06/2018 (Website). It is possible to read the advisory at usn.ubuntu.com. This vulnerability is known as CVE-2018-9415 since 04/05/2018. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/04/2023). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 52 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 112110 (Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3752-2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (112110). The entries 120532, 120533, 120534 and 120535 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 112110
Nessus Name: Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3752-2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/05/2018 🔍
07/03/2018 +89 days 🔍
08/24/2018 +52 days 🔍
08/24/2018 +0 days 🔍
11/06/2018 +74 days 🔍
11/06/2018 +0 days 🔍
11/07/2018 +1 days 🔍
06/04/2023 +1670 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: USN-3752-2
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-9415 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 11/07/2018 15:11
Updated: 06/04/2023 17:14
Changes: 11/07/2018 15:11 (72), 04/10/2020 12:46 (1), 06/04/2023 17:06 (4), 06/04/2023 17:14 (1)
Complete: 🔍

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