Linux Kernel 4.14.67 resource consumption

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.3$0-$5k0.00

A vulnerability classified as problematic has been found in Linux Kernel 4.14.67 (Operating System). Affected is some unknown functionality. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-400. This is going to have an impact on availability. CVE summarizes:

The Linux kernel 4.14.67 mishandles certain interaction among XFRM Netlink messages, IPPROTO_AH packets, and IPPROTO_IP packets, which allows local users to cause a denial of service (memory consumption and system hang) by leveraging root access to execute crafted applications, as demonstrated on CentOS 7.

The bug was discovered 10/05/2018. The weakness was shared 10/08/2018 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is traded as CVE-2018-17977 since 10/03/2018. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105539).

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VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 2.3
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.4
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Denial of service
CWE: CWE-400
ATT&CK: T1499

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

10/03/2018 🔍
10/05/2018 +2 days 🔍
10/08/2018 +2 days 🔍
10/08/2018 +0 days 🔍
10/09/2018 +1 days 🔍
03/31/2020 +539 days 🔍

Sourcesinfoedit

Vendor: https://www.kernel.org/

Advisory: openwall.com
Status: Not defined

CVE: CVE-2018-17977 (🔍)
SecurityFocus: 105539

Entryinfoedit

Created: 10/09/2018 08:14 AM
Updated: 03/31/2020 04:47 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍

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