Linux Kernel up to 5.3.12 fs/btrfs/ctree.c btrfs_root_node null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.3.12. It has been classified as problematic. This affects the function btrfs_root_node of the file fs/btrfs/ctree.c. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2019-19036. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.3.12 (Operating System) and classified as problematic. Affected by this vulnerability is the function btrfs_root_node of the file fs/btrfs/ctree.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.

The weakness was released 11/21/2019. This vulnerability is known as CVE-2019-19036 since 11/17/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

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

Entries connected to this vulnerability are available at VDB-146013 and VDB-146012. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/17/2019 🔍
11/21/2019 +4 days 🔍
11/21/2019 +0 days 🔍
02/26/2024 +1558 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-4414-1
Status: Not defined

CVE: CVE-2019-19036 (🔍)
GCVE (CVE): GCVE-0-2019-19036
GCVE (VulDB): GCVE-100-146011
See also: 🔍

Entryinfo

Created: 11/21/2019 08:21
Updated: 02/26/2024 07:30
Changes: 11/21/2019 08:21 (38), 11/21/2019 08:26 (18), 02/26/2024 07:30 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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