Linux Kernel CXGB3 Kernel Driver use after free

CVSS Meta Temp Score
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CTI Interest Score
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9.1$0-$5k0.00

A vulnerability was found in Linux Kernel (Operating System) (unknown version). It has been rated as critical. This issue affects an unknown code block of the component CXGB3 Kernel Driver. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was released 02/11/2016 with Red Hat as Bug 1303532 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2015-8812 since 02/11/2016. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 89040 (Debian DLA-439-1 : linux-2.6 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196465 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2967-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (110574) and Tenable (89040). seclists.org is providing further details. Entries connected to this vulnerability are available at 78542, 80805, 81295 and 82949.

Productinfo

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Name

License

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.1

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
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
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89040
Nessus Name: Debian DLA-439-1 : linux-2.6 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 80009
OpenVAS Name: Ubuntu Update for linux-lts-vivid USN-2949-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

02/11/2016 🔍
02/11/2016 +0 days 🔍
02/11/2016 +0 days 🔍
02/16/2016 +5 days 🔍
02/29/2016 +13 days 🔍
03/01/2016 +1 days 🔍
04/06/2016 +36 days 🔍
04/07/2016 +1 days 🔍
04/27/2016 +20 days 🔍
07/08/2022 +2263 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 1303532
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8812 (🔍)
OVAL: 🔍

X-Force: 110574 - Linux Kernel CXGB3 kernel driver privilege escalation
Vulnerability Center: 57973 - Linux Kernel before 4.3.6 Remote Privilege Escalation Vulnerability - CVE-2015-8812, Critical
SecurityFocus: 83218 - Linux Kernel CVE-2015-8812 Local Privilege Escalation Vulnerability

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 02/16/2016 10:02 AM
Updated: 07/08/2022 08:13 AM
Changes: 02/16/2016 10:02 AM (64), 02/03/2019 10:55 AM (20), 07/08/2022 08:11 AM (3), 07/08/2022 08:13 AM (10)
Complete: 🔍

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