Exploited
high
7.8
CWE
665 281 909
Advisory Published
CVE Published
Updated

CVE-2022-0847: Linux Kernel Privilege Escalation Vulnerability

First published: Fri Mar 04 2022(Updated: )

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.

Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-348.20.1.rt7.150.el8_5
0:4.18.0-348.20.1.rt7.150.el8_5
redhat/kernel<0:4.18.0-348.20.1.el8_5
0:4.18.0-348.20.1.el8_5
redhat/kernel<0:4.18.0-147.64.1.el8_1
0:4.18.0-147.64.1.el8_1
redhat/kernel-rt<0:4.18.0-193.79.1.rt13.129.el8_2
0:4.18.0-193.79.1.rt13.129.el8_2
redhat/kernel<0:4.18.0-193.79.1.el8_2
0:4.18.0-193.79.1.el8_2
redhat/kernel-rt<0:4.18.0-305.40.2.rt7.113.el8_4
0:4.18.0-305.40.2.rt7.113.el8_4
redhat/kernel<0:4.18.0-305.40.2.el8_4
0:4.18.0-305.40.2.el8_4
redhat/kernel<5.17
5.17
Linux Linux kernel>=5.8<5.10.102
Linux Linux kernel>=5.15<5.15.25
Linux Linux kernel>=5.16<5.16.11
Fedoraproject Fedora=35
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Eus=8.2
Redhat Enterprise Linux Eus=8.4
Redhat Enterprise Linux For Ibm Z Systems=8.0
Redhat Enterprise Linux For Ibm Z Systems Eus=8.2
Redhat Enterprise Linux For Ibm Z Systems Eus=8.4
Redhat Enterprise Linux For Power Little Endian=8.0
Redhat Enterprise Linux For Power Little Endian Eus=8.2
Redhat Enterprise Linux For Power Little Endian Eus=8.4
Redhat Enterprise Linux For Real Time=8
Redhat Enterprise Linux For Real Time For Nfv=8
Redhat Enterprise Linux For Real Time For Nfv Tus=8.2
Redhat Enterprise Linux For Real Time For Nfv Tus=8.4
Redhat Enterprise Linux For Real Time Tus=8.2
Redhat Enterprise Linux For Real Time Tus=8.4
Redhat Enterprise Linux Server Aus=8.2
Redhat Enterprise Linux Server Aus=8.4
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions=8.1
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions=8.2
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions=8.4
Redhat Enterprise Linux Server Tus=8.2
Redhat Enterprise Linux Server Tus=8.4
Redhat Enterprise Linux Server Update Services For Sap Solutions=8.1
Redhat Enterprise Linux Server Update Services For Sap Solutions=8.2
Redhat Enterprise Linux Server Update Services For Sap Solutions=8.4
Redhat Codeready Linux Builder
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Eus=8.2
Redhat Enterprise Linux Eus=8.4
Redhat Enterprise Linux For Power Little Endian=8.0
Redhat Enterprise Linux For Power Little Endian Eus=8.2
Redhat Enterprise Linux For Power Little Endian Eus=8.4
Redhat Virtualization Host=4.0
Ovirt Ovirt-engine=4.4.10.2
Netapp H300s Firmware
Netapp H300s
Netapp H500s Firmware
Netapp H500s
Netapp H700s Firmware
Netapp H700s
Netapp H300e Firmware
Netapp H300e
Netapp H500e Firmware
Netapp H500e
Netapp H700e Firmware
Netapp H700e
Netapp H410s Firmware
Netapp H410s
Netapp H410c Firmware
Netapp H410c
Siemens Scalance Lpe9403 Firmware<2.0
Siemens Scalance Lpe9403
Sonicwall Sma1000 Firmware<=12.4.2-02044
SonicWall SMA1000
All of
Redhat Codeready Linux Builder
Any of
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Eus=8.2
Redhat Enterprise Linux Eus=8.4
Redhat Enterprise Linux For Power Little Endian=8.0
Redhat Enterprise Linux For Power Little Endian Eus=8.2
Redhat Enterprise Linux For Power Little Endian Eus=8.4
All of
Redhat Virtualization Host=4.0
Redhat Enterprise Linux=8.0
All of
Netapp H300s Firmware
Netapp H300s
All of
Netapp H500s Firmware
Netapp H500s
All of
Netapp H700s Firmware
Netapp H700s
All of
Netapp H300e Firmware
Netapp H300e
All of
Netapp H500e Firmware
Netapp H500e
All of
Netapp H700e Firmware
Netapp H700e
All of
Netapp H410s Firmware
Netapp H410s
All of
Netapp H410c Firmware
Netapp H410c
All of
Siemens Scalance Lpe9403 Firmware<2.0
Siemens Scalance Lpe9403
All of
Sonicwall Sma1000 Firmware<=12.4.2-02044
SonicWall SMA1000
Google Android
Linux kernel
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.112-1
6.11.5-1
6.11.7-1

Remedy

Currently there is no mitigation available for this flaw. Customers should update to fixed packages, once they are available.

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=2060795

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