Oracle Solaris 10/11 Filesystem denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Oracle Solaris 10/11. It has been declared as critical. This affects an unknown part of the component Filesystem. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2021-43395. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Oracle Solaris 10/11 (Operating System). It has been rated as critical. Affected by this issue is some unknown processing of the component Filesystem. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

An issue was discovered in illumos before f859e7171bb5db34321e45585839c6c3200ebb90, OmniOS Community Edition r151038, OpenIndiana Hipster 2021.04, and SmartOS 20210923. A local unprivileged user can cause a deadlock and kernel panic via crafted rename and rmdir calls on tmpfs filesystems. Oracle Solaris 10 and 11 is also affected.

The weakness was shared 01/19/2021 as Oracle Critical Patch Update Advisory - January 2022. The advisory is shared for download at oracle.com. This vulnerability is handled as CVE-2021-43395. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

01/19/2021 🔍
01/19/2021 +0 days 🔍
11/04/2021 +289 days 🔍
01/19/2022 +76 days 🔍
04/15/2025 +1182 days 🔍

Sourcesinfo

Vendor: oracle.com

Advisory: Oracle Critical Patch Update Advisory - January 2022
Status: Confirmed

CVE: CVE-2021-43395 (🔍)
GCVE (CVE): GCVE-0-2021-43395
GCVE (VulDB): GCVE-100-191204

Entryinfo

Created: 01/19/2022 15:49
Updated: 04/15/2025 02:05
Changes: 01/19/2022 15:49 (41), 01/25/2022 20:22 (1), 04/15/2025 02:05 (27)
Complete: 🔍
Cache ID: 216::103

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