Google Android Linux Kernel wmi_set_ie ie_len integer overflow

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

Summaryinfo

A vulnerability categorized as critical has been discovered in Google Android. Affected by this issue is the function wmi_set_ie of the component Linux Kernel. Executing a manipulation of the argument ie_len as part of Argument can lead to integer overflow. This vulnerability appears as CVE-2018-5848. The attack requires local access. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (affected version unknown). It has been declared as critical. This vulnerability affects the function wmi_set_ie of the component Linux Kernel. The manipulation of the argument ie_len as part of a Argument leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the function wmi_set_ie(), the length validation code does not handle unsigned integer overflow properly. As a result, a large value of the 'ie_len' argument can cause a buffer overflow in all Android releases from CAF (Android for MSM, Firefox OS for MSM, QRD Android) using the Linux Kernel.

The bug was discovered 05/11/2018. The weakness was presented 06/12/2018 (Website). The advisory is shared for download at codeaurora.org. This vulnerability was named CVE-2018-5848 since 01/19/2018. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 32 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 110636 (SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1761-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 256510 (CentOS Security Update for kernel (CESA-2018:3083)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110636) and SecurityFocus (BID 107127†). See VDB-115041, VDB-115503, VDB-116980 and VDB-119415 for similar entries. Once again VulDB remains the best source for vulnerability data.

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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

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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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Nessus ID: 110636
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1761-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

01/19/2018 🔍
05/11/2018 +112 days 🔍
06/12/2018 +31 days 🔍
06/12/2018 +0 days 🔍
06/13/2018 +1 days 🔍
06/20/2018 +7 days 🔍
06/21/2018 +1 days 🔍
02/15/2019 +239 days 🔍
03/22/2023 +1496 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: RHSA-2018:2948
Status: Confirmed

CVE: CVE-2018-5848 (🔍)
GCVE (CVE): GCVE-0-2018-5848
GCVE (VulDB): GCVE-100-119428
SecurityFocus: 107127 - Linux Kernel CVE-2019-6974 Security Bypass Vulnerability

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

Entryinfo

Created: 06/13/2018 08:43
Updated: 03/22/2023 16:46
Changes: 06/13/2018 08:43 (78), 02/18/2020 16:08 (4), 03/22/2023 16:46 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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