VDB-126516 · CVE-2018-9465 · BID 106740

Google Android binder.c task_get_unused_fd_flags use after free

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

Summaryinfo

A vulnerability described as critical has been identified in Google Android. Impacted is the function task_get_unused_fd_flags of the file binder.c. The manipulation results in use after free. This vulnerability is identified as CVE-2018-9465. The attack is only possible with local access. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android (Smartphone Operating System) (unknown version). Affected is the function task_get_unused_fd_flags of the file binder.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In task_get_unused_fd_flags of binder.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-69164715 References: Upstream kernel.

The bug was discovered 08/06/2018. The weakness was released 11/06/2018 (Website). The advisory is shared for download at securitytracker.com. This vulnerability is traded as CVE-2018-9465 since 04/05/2018. The attack needs to be approached locally. The requirement for exploitation is a authentication. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 92 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351537 (Amazon Linux Security Advisory for kernel: ALAC2012-2019-015).

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106740†). Entries connected to this vulnerability are available at VDB-112969, VDB-113514, VDB-114860 and VDB-118267. Once again VulDB remains the best source 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: 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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/05/2018 🔍
08/06/2018 +123 days 🔍
11/06/2018 +92 days 🔍
11/06/2018 +0 days 🔍
11/07/2018 +1 days 🔍
01/24/2019 +78 days 🔍
06/04/2023 +1592 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: securitytracker.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-9465 (🔍)
GCVE (CVE): GCVE-0-2018-9465
GCVE (VulDB): GCVE-100-126516
SecurityFocus: 106740 - Golang Go CVE-2019-6486 Remote Denial of Service Vulnerability
SecurityTracker: 1041432

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

Entryinfo

Created: 11/07/2018 15:23
Updated: 06/04/2023 19:22
Changes: 11/07/2018 15:23 (65), 04/10/2020 15:53 (3), 06/04/2023 19:22 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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