Linux Kernel up to 4.5.2 Netfilter Subsystem memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.5.2. Affected by this issue is some unknown functionality of the component Netfilter Subsystem. This manipulation causes memory corruption. This vulnerability appears as CVE-2016-3134. The attack requires local access. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 4.5.2 (Operating System). Affected by this vulnerability is some unknown processing of the component Netfilter Subsystem. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The netfilter subsystem in the Linux kernel through 4.5.2 does not validate certain offset fields, which allows local users to gain privileges or cause a denial of service (heap memory corruption) via an IPT_SO_SET_REPLACE setsockopt call.

The weakness was presented 04/27/2016 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2016-3134 since 03/12/2016. Attacking locally is a requirement. Required for exploitation is a single authentication. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 90128 (Fedora 23 : kernel-4.4.6-300.fc23 (2016-02ed08bf15)), 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 157314 (Oracle Enterprise Linux Security Update for kernel (ELSA-2016-2574)-Deprecated).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (39545), Tenable (90128) and SecurityFocus (BID 84305†). See VDB-81386, VDB-82951, VDB-82953 and VDB-82965 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.4
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 90128
Nessus Name: Fedora 23 : kernel-4.4.6-300.fc23 (2016-02ed08bf15)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 865386
OpenVAS Name: Ubuntu Update for linux-lts-trusty USN-2929-2
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

03/09/2016 🔍
03/12/2016 +3 days 🔍
03/22/2016 +10 days 🔍
03/23/2016 +1 days 🔍
04/27/2016 +34 days 🔍
04/27/2016 +0 days 🔍
04/28/2016 +1 days 🔍
10/17/2024 +3094 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2016-02ed08bf15
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-3134 (🔍)
GCVE (CVE): GCVE-0-2016-3134
GCVE (VulDB): GCVE-100-82963

OVAL: 🔍

SecurityFocus: 84305 - Linux Kernel Local Memory Corruption and Integer Overflow Vulnerabilities
SecurityTracker: 1036763

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/28/2016 10:25
Updated: 10/17/2024 03:12
Changes: 04/28/2016 10:25 (58), 10/29/2018 05:59 (22), 07/27/2022 08:27 (6), 07/27/2022 08:29 (1), 07/27/2022 08:32 (1), 10/17/2024 03:12 (22)
Complete: 🔍
Cache ID: 216:F6F:103

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