VDB-120538 · CVE-2018-5873 · BID 100497

Google Android Linux Kernel use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.8$5k-$25k0.00

A vulnerability classified as critical was found in Google Android (Smartphone Operating System) (unknown version). This vulnerability affects an unknown code block of the component Linux Kernel. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 07/05/2018. The weakness was presented 07/06/2018 (Website). The advisory is available at source.android.com. This vulnerability was named CVE-2018-5873 since 01/19/2018. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/05/2023). 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 1 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 117769 (Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4227)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157806 (Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2018-4227)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (117769). See 105729, 120531, 120537 and 123745 for similar entries.

Productinfo

Type

Vendor

Name

License

  • free

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
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
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: 117769
Nessus Name: Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4227)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

08/25/2017 🔍
01/19/2018 +147 days 🔍
07/05/2018 +167 days 🔍
07/06/2018 +0 days 🔍
07/06/2018 +0 days 🔍
07/07/2018 +1 days 🔍
09/26/2018 +81 days 🔍
09/27/2018 +1 days 🔍
04/05/2023 +1651 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: 073c516ff73557a8f7315066856c04b50383ac34
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5873 (🔍)
SecurityFocus: 100497 - Linux Kernel 'drivers/acpi/acpica/nseval.c' Local Information Disclosure Vulnerability

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

Entryinfo

Created: 07/07/2018 09:23 AM
Updated: 04/05/2023 08:29 AM
Changes: 07/07/2018 09:23 AM (72), 02/26/2020 03:23 PM (5), 04/05/2023 08:29 AM (5)
Complete: 🔍

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