VDB-114075 · CVE-2017-18218 · Nessus 109518

Linux Kernel up to 4.12 hns_enet.c hns_nic_net_xmit_hw/hns_nic_net_xmit use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 4.12 and classified as problematic. Impacted is the function hns_nic_net_xmit_hw/hns_nic_net_xmit of the file drivers/net/ethernet/hisilicon/hns/hns_enet.c. Performing a manipulation results in use after free. This vulnerability is known as CVE-2017-18218. Attacking locally is a requirement. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.12 (Operating System). This affects the function hns_nic_net_xmit_hw/hns_nic_net_xmit of the file drivers/net/ethernet/hisilicon/hns/hns_enet.c. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on availability. The summary by CVE is:

In drivers/net/ethernet/hisilicon/hns/hns_enet.c in the Linux kernel before 4.13, local users can cause a denial of service (use-after-free and BUG) or possibly have unspecified other impact by leveraging differences in skb handling between hns_nic_net_xmit_hw and hns_nic_net_xmit.

The bug was discovered 07/06/2017. The weakness was published 03/05/2018 (Website). It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2017-18218 since 03/05/2018. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 242 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 109518 (Debian DSA-4188-1 : linux - security update (Spectre)), 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 351264 (Amazon Linux Security Advisory for kernel: ALAC2012-2018-003).

Upgrading to version 4.13 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109518), SecurityFocus (BID 103277†) and CERT Bund (WID-SEC-2022-0532). Similar entries are available at VDB-111185, VDB-111443, VDB-111732 and VDB-111733. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Oracle Linux
Debian Linux
Open Source Linux Kernel
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle VM
NetApp FAS
Avaya Aura Communication Manager
Avaya Aura Session Manager
Avaya Aura Application Enablement Services
Avaya Aura System Manager
Avaya Aura Experience Portal
NetApp AFF

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

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: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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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
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 109518
Nessus Name: Debian DSA-4188-1 : linux - security update (Spectre)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54612
OpenVAS Name: Debian Security Advisory DSA 4188-1 (linux - security update)
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: 🔍

Upgrade: Kernel 4.13
Patch: git.kernel.org

Timelineinfo

07/06/2017 🔍
03/05/2018 +242 days 🔍
03/05/2018 +0 days 🔍
03/05/2018 +0 days 🔍
03/06/2018 +1 days 🔍
03/07/2018 +1 days 🔍
05/01/2018 +55 days 🔍
05/02/2018 +1 days 🔍
09/14/2025 +2692 days 🔍