Linux Kernel up to 4.8.11 net/tipc/msg.c tipc_msg_build memory corruption

CVSS Meta Temp Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 4.8.11. This affects the function tipc_msg_build of the file net/tipc/msg.c. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2016-8632. The attack needs to be approached locally. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 4.8.11 (Operating System). This affects the function tipc_msg_build of the file net/tipc/msg.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The tipc_msg_build function in net/tipc/msg.c in the Linux kernel through 4.8.11 does not validate the relationship between the minimum fragment length and the maximum packet size, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) by leveraging the CAP_NET_ADMIN capability.

The bug was discovered 12/09/2016. The weakness was presented 11/28/2016 with Qihoo 360 (Website). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-8632 since 10/12/2016. The exploitability is told to be easy. Attacking locally is a requirement. The successful exploitation needs a authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 95708 (openSUSE Security Update : the Linux Kernel (openSUSE-2016-1436)), 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 169573 (OpenSuSE Security Update for the Linux Kernel (openSUSE-SU-2016:3050-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (95708) and SecurityFocus (BID 94211†). See VDB-93847, VDB-93846, VDB-93845 and VDB-93844 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
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: Memory corruption
CWE: 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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Nessus ID: 95708
Nessus Name: openSUSE Security Update : the Linux Kernel (openSUSE-2016-1436)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841270
OpenVAS Name: SuSE Update for Kernel openSUSE-SU-2016:3077-1 (Kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

10/12/2016 🔍
11/10/2016 +29 days 🔍
11/27/2016 +17 days 🔍
11/28/2016 +1 days 🔍
11/28/2016 +0 days 🔍
12/09/2016 +11 days 🔍
12/10/2016 +1 days 🔍
12/12/2016 +2 days 🔍
06/11/2019 +911 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Organization: Qihoo 360
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-8632 (🔍)
GCVE (CVE): GCVE-0-2016-8632
GCVE (VulDB): GCVE-100-93843
SecurityFocus: 94211 - Linux Kernel CVE-2016-8632 Local Heap Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 11/28/2016 09:31
Updated: 06/11/2019 09:55
Changes: 11/28/2016 09:31 (67), 06/11/2019 09:55 (16)
Complete: 🔍
Cache ID: 216:5F7:103

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