medium
6.1
CWE
459
Advisory Published
CVE Published
CVE Published
Updated

CVE-2022-21123

First published: Wed May 25 2022(Updated: )

A flaw was found in hw. Incomplete cleanup of multi-core shared buffers 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
6.12.11-1
6.12.12-1
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-2022-21123?

    CVE-2022-21123 is classified as a moderate severity vulnerability.

  • How do I fix CVE-2022-21123?

    To fix CVE-2022-21123, update to the latest kernel versions provided by your distribution, such as 0:3.10.0-1160.76.1.rt56.1220.el7 or equivalent for your system.

  • Who is affected by CVE-2022-21123?

    CVE-2022-21123 affects certain Intel processors and systems running specific kernel versions.

  • What kind of impact does CVE-2022-21123 have?

    CVE-2022-21123 can lead to information disclosure through local access by authenticated users.

  • What are the affected software versions in CVE-2022-21123?

    Affected software versions include specific Red Hat kernels, Debian kernel packages, and Intel microcode versions listed in the vulnerability details.

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