Linux Kernel up to 4.17 fs/xfs/xfs_super.c xfs_fs_fill_super memory corruption

A vulnerability, which was classified as critical, was found in Linux Kernel up to 4.17 (Operating System). Affected is the function xfs_fs_fill_super of the file fs/xfs/xfs_super.c. The manipulation with an unknown input leads to a memory corruption vulnerability (Use-After-Free). CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 08/19/2019. This vulnerability is traded as CVE-2018-20976 since 08/18/2019. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 08/19/2019).

Upgrading to version 4.18 eliminates this vulnerability.

Entries connected to this vulnerability are available at 140285, 140284, 140283 and 140282.

Type

Vendor

Name

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: ≈5.5
VulDB Temp Score: ≈5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Memory corruption / Use-After-Free (CWE-119)
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.18

08/18/2019 CVE assigned
08/19/2019 +1 days Advisory disclosed
08/19/2019 +0 days VulDB entry created
08/19/2019 +0 days VulDB last updateVendor: kernel.org
CVE: CVE-2018-20976 (🔒)
See also: 🔒Created: 08/19/2019 08:23 AM
Complete: 🔍

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