Linux Kernel 5.0.21/5.3.11 btrfs Filesystem free-space-cache.c try_merge_free_space memory corruption

A vulnerability classified as critical has been found in Linux Kernel 5.0.21/5.3.11 (Operating System). Affected is the function try_merge_free_space of the file fs/btrfs/free-space-cache.c of the component btrfs Filesystem Handler. 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 published 12/08/2019. This vulnerability is traded as CVE-2019-19448 since 11/29/2019. 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 12/08/2019).

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

Similar entries are available at 146791 and 146789.

Type

Vendor

Name

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

VulDB Base Score: ≈5.5
VulDB Temp Score: ≈5.5
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: no mitigation known

0-Day Time: 🔒

11/29/2019 CVE assigned
12/08/2019 +9 days Advisory disclosed
12/08/2019 +0 days VulDB entry created
12/08/2019 +0 days VulDB last updateVendor: kernel.org
CVE: CVE-2019-19448 (🔒)
See also: 🔒Created: 12/08/2019 01:25 PM
Complete: 🔍

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