Linux Kernel up to 5.0.x information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel up to 5.0.x. This issue affects some unknown processing. Such manipulation leads to information disclosure. This vulnerability is documented as CVE-2019-3459. The attack requires being on the local network. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.0.x (Operating System). Affected by this issue is an unknown part. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before 5.1-rc1.

The bug was discovered 01/10/2019. The weakness was released 04/11/2019 (Website). The advisory is available at lore.kernel.org. This vulnerability is handled as CVE-2019-3459 since 12/31/2018. The exploitation is known to be easy. The attack needs to be done within the local network. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 121218 (Fedora 29 : kernel / kernel-headers (2019-f812c9fb22)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172061 (OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2019:0140-1)).

Upgrading to version 5.1-rc1 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 databases at Tenable (121218) and SecurityFocus (BID 106730†). Entries connected to this vulnerability are available at VDB-130266, VDB-131975 and VDB-133347. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121218
Nessus Name: Fedora 29 : kernel / kernel-headers (2019-f812c9fb22)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.1-rc1

Timelineinfo

12/31/2018 🔍
01/10/2019 +10 days 🔍
01/17/2019 +7 days 🔍
01/17/2019 +0 days 🔍
01/25/2019 +8 days 🔍
04/11/2019 +76 days 🔍
04/11/2019 +0 days 🔍
08/28/2023 +1600 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2019-f812c9fb22
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-3459 (🔍)
GCVE (CVE): GCVE-0-2019-3459
GCVE (VulDB): GCVE-100-133346
SecurityFocus: 106730 - Linux Kernel CVE-2019-3819 Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 04/11/2019 21:05
Updated: 08/28/2023 17:40
Changes: 04/11/2019 21:05 (75), 05/29/2020 09:36 (3), 08/28/2023 17:32 (4), 08/28/2023 17:40 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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