Linux Kernel up to 5.10.101/5.15.24/5.16.10 Pipe Dirty Pipe initialization

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.10.101/5.15.24/5.16.10. The impacted element is an unknown function of the component Pipe Handler. The manipulation leads to an unknown weakness. This vulnerability is listed as CVE-2022-0847. The attack may be initiated remotely. In addition, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.101/5.15.24/5.16.10 (Operating System) and classified as critical. This issue affects some unknown processing of the component Pipe Handler. Using CWE to declare the problem leads to CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

The weakness was presented 03/08/2022. The advisory is shared at dirtypipe.cm4all.com. The identification of this vulnerability is CVE-2022-0847. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Max Kellermann/BLASTY in C and been published before and not just after the advisory. The exploit is available at haxx.in. It is declared as attacked. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 236670 (Alibaba Cloud Linux 3 : 0125: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0125)), which helps to determine the existence of the flaw in a target environment. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 04/25/2022 with a due date of 05/16/2022:

Apply updates per vendor instructions.

Upgrading to version 5.10.102, 5.15.25 or 5.16.11 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at lore.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Exploit-DB (50808) and Tenable (236670). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Initialization
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Author: Max Kellermann/BLASTY
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236670
Nessus Name: Alibaba Cloud Linux 3 : 0125: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0125)

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.10.102/5.15.25/5.16.11
Patch: lore.kernel.org

Timelineinfo

03/03/2022 🔍
03/07/2022 +4 days 🔍
03/08/2022 +1 days 🔍
03/08/2022 +0 days 🔍
11/06/2025 +1339 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: dirtypipe.cm4all.com
Status: Confirmed

CVE: CVE-2022-0847 (🔍)
GCVE (CVE): GCVE-0-2022-0847
GCVE (VulDB): GCVE-100-194333
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/08/2022 05:52
Updated: 11/06/2025 16:42
Changes: 03/08/2022 05:52 (43), 03/08/2022 09:26 (6), 03/09/2022 17:14 (2), 03/16/2022 08:51 (1), 04/25/2024 18:19 (28), 09/02/2024 07:32 (1), 09/21/2024 22:51 (1), 05/18/2025 18:44 (2), 07/30/2025 04:35 (20), 11/06/2025 16:42 (1)
Complete: 🔍
Committer: misc
Cache ID: 216::103

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