medium
5.5
CWE
459
Advisory Published
CVE Published
CVE Published
Updated

CVE-2022-21166

First published: Wed May 25 2022(Updated: )

A flaw was found in hw. Incomplete cleanup in specific special register write operations for some Intel® Processors may allow an authenticated user to enable information disclosure via local access.

Credit: secure@intel.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1160.76.1.rt56.1220.el7
0:3.10.0-1160.76.1.rt56.1220.el7
redhat/kernel<0:3.10.0-1160.76.1.el7
0:3.10.0-1160.76.1.el7
redhat/kernel-rt<0:4.18.0-372.26.1.rt7.183.el8_6
0:4.18.0-372.26.1.rt7.183.el8_6
redhat/kernel<0:4.18.0-372.26.1.el8_6
0:4.18.0-372.26.1.el8_6
redhat/kernel<0:4.18.0-147.76.1.el8_1
0:4.18.0-147.76.1.el8_1
redhat/kernel<0:4.18.0-193.93.1.el8_2
0:4.18.0-193.93.1.el8_2
redhat/kernel-rt<0:4.18.0-193.93.1.rt13.143.el8_2
0:4.18.0-193.93.1.rt13.143.el8_2
redhat/kernel-rt<0:4.18.0-305.65.1.rt7.137.el8_4
0:4.18.0-305.65.1.rt7.137.el8_4
redhat/kernel<0:4.18.0-305.65.1.el8_4
0:4.18.0-305.65.1.el8_4
redhat/kernel<0:5.14.0-162.6.1.el9_1
0:5.14.0-162.6.1.el9_1
redhat/kernel-rt<0:5.14.0-162.6.1.rt21.168.el9_1
0:5.14.0-162.6.1.rt21.168.el9_1
redhat/kernel<0:5.14.0-70.36.1.el9_0
0:5.14.0-70.36.1.el9_0
redhat/kernel-rt<0:5.14.0-70.36.1.rt21.108.el9_0
0:5.14.0-70.36.1.rt21.108.el9_0
debian/intel-microcode
3.20240813.1~deb11u1
3.20241112.1~deb11u1
3.20241112.1~deb12u1
3.20231114.1~deb12u1
3.20241112.1
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.119-1
6.12.10-1
6.12.11-1
debian/xen
4.14.6-1
4.14.5+94-ge49571868d-1
4.17.3+10-g091466ba55-1~deb12u1
4.17.5+23-ga4e5191dc0-1
4.19.1-1
Xen xen-unstable
Fedoraproject Fedora=35
Fedoraproject Fedora=36
Intel sgx dcap linux<1.14.100.3
Intel sgx dcap windows<1.14.100.3
Intel sgx psw windows<2.16.100.3
Intel sgx psw linux<2.17.100.3
Intel sgx sdk windows<2.16.100.3
Intel sgx sdk linux<2.17.100.3
VMware ESXi=7.0
VMware ESXi=7.0-beta
VMware ESXi=7.0-update_1
VMware ESXi=7.0-update_1a
VMware ESXi=7.0-update_1b
VMware ESXi=7.0-update_1c
VMware ESXi=7.0-update_1d
VMware ESXi=7.0-update_2
VMware ESXi=7.0-update_2a
VMware ESXi=7.0-update_2c
VMware ESXi=7.0-update_2d
VMware ESXi=7.0-update_3c
VMware ESXi=7.0-update_3d
Debian GNU/Linux=9.0
Debian GNU/Linux=10.0
Debian GNU/Linux=11.0

Remedy

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation baser or stability.

Remedy

http://www.openwall.com/lists/oss-security/2022/06/16/1

Remedy

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00615.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-21166?

    CVE-2022-21166 is considered a medium severity vulnerability due to potential information disclosure risks.

  • How do I fix CVE-2022-21166?

    To fix CVE-2022-21166, ensure that you update to the latest kernel versions provided by Red Hat as specified in the advisory.

  • Who is affected by CVE-2022-21166?

    CVE-2022-21166 affects certain Intel processors and may impact systems running specific versions of the Red Hat kernel.

  • What potential impact does CVE-2022-21166 have?

    CVE-2022-21166 can potentially allow an authenticated user to gain access to sensitive information due to incomplete cleanup processes.

  • Is CVE-2022-21166 exploitable remotely?

    CVE-2022-21166 is not remotely exploitable as it requires local authenticated access to the affected systems.

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