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6.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 4.9.9. This impacts the function ipv4_pktinfo_prepare of the file net/ipv4/ip_sockglue.c. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2017-5970. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 4.9.9 (Operating System) and classified as problematic. This vulnerability affects the function ipv4_pktinfo_prepare of the file net/ipv4/ip_sockglue.c. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect availability. CVE summarizes:

The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel through 4.9.9 allows attackers to cause a denial of service (system crash) via (1) an application that makes crafted system calls or possibly (2) IPv4 traffic with invalid IP options.

The bug was discovered 02/14/2017. The weakness was disclosed 02/14/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability was named CVE-2017-5970 since 02/12/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 97357 (Debian DSA-3791-1 : linux - 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 175973 (Debian Security Update for Linux (DSA 3791-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97357) and SecurityFocus (BID 96233†). The entries VDB-93850, VDB-94694, VDB-95265 and VDB-96557 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.9.0
• 4.9.1
• 4.9.2
• 4.9.3
• 4.9.4
• 4.9.5
• 4.9.6
• 4.9.7
• 4.9.8
• 4.9.9

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 97357
Nessus Name: Debian DSA-3791-1 : linux - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900211
OpenVAS Name: SuSE Update for Linux Kernel openSUSE-SU-2017:0547-1 (Linux Kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

02/04/2017 🔍
02/12/2017 +8 days 🔍
02/14/2017 +2 days 🔍
02/14/2017 +0 days 🔍
02/14/2017 +0 days 🔍
02/14/2017 +0 days 🔍
02/14/2017 +0 days 🔍
02/22/2017 +7 days 🔍
02/24/2017 +2 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5970 (🔍)
GCVE (CVE): GCVE-0-2017-5970
GCVE (VulDB): GCVE-100-96952

OVAL: 🔍

SecurityFocus: 96233 - Linux kernel 'ip_sockglue.c' Denial of Service Vulnerability
OSVDB: - CVE-2017-5970 - Linux - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 02/14/2017 16:21
Changes: 02/14/2017 16:21 (84)
Complete: 🔍
Cache ID: 216:9D8:103

Discussion

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