CVE-2022-0516: Infoleak
First published: Thu Feb 03 2022(Updated: )
A vulnerability was found in kvm_s390_guest_sida_op in arch/s390/kvm/kvm-s390.c in KVM for s390 in the Linux kernel. In this flaw, a local attacker with a normal user privilege may impact in unauthorized memory write access.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <0:4.18.0-348.20.1.el8_5 | 0:4.18.0-348.20.1.el8_5 |
| redhat/kernel | <0:4.18.0-305.40.1.el8_4 | 0:4.18.0-305.40.1.el8_4 |
| redhat/kernel | <5.17 | 5.17 |
| Linux Kernel | <5.17 | |
| Linux Kernel | =5.17-rc1 | |
| Linux Kernel | =5.17-rc2 | |
| Linux Kernel | =5.17-rc3 | |
| Fedora | =34 | |
| Fedora | =35 | |
| Debian | =11.0 | |
| All of | ||
| Red Hat Virtualization Host EUS | =4.0 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux Server EUS | =8.4 | |
| Red Hat Enterprise Linux for IBM Z Systems | =8.0 | |
| Red Hat Enterprise Linux for IBM Z Systems (s390x) | =8.4 | |
| Red Hat Enterprise Linux for Power, little endian | =8.0 | |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | =8.4 | |
| Red Hat Enterprise Linux Server | =8.4 | |
| Red Hat Enterprise Linux for SAP Applications for Power, little endian - Extended Update Support | =8.4 | |
| Red Hat Enterprise Linux Server | =8.4 | |
| Red Hat Enterprise Linux Server Update Services for SAP Solutions | =8.4 | |
| All of | ||
| Red Hat CodeReady Linux Builder | ||
| Any of | ||
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux Server EUS | =8.4 | |
| Red Hat Enterprise Linux for Power, little endian | =8.0 | |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | =8.4 | |
| All of | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| All of | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700S | ||
| NetApp H700S | ||
| All of | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| All of | ||
| NetApp H500E | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700E | ||
| NetApp H700E | ||
| All of | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| All of | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| Red Hat Virtualization Host EUS | =4.0 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat CodeReady Linux Builder | ||
| Red Hat Enterprise Linux Server EUS | =8.4 | |
| Red Hat Enterprise Linux for Power, little endian | =8.0 | |
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | =8.4 | |
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| NetApp H700S | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| NetApp H500E | ||
| NetApp H500e Firmware | ||
| NetApp H700E | ||
| NetApp H700E | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.17-1 |
Remedy
As the kvm.ko kernel module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions: # echo "install kvm /bin/true" >> /etc/modprobe.d/disable-kvm.conf If the system requires this module to work correctly, this mitigation may not be suitable. If you need further assistance, see the KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-0516 https://nvd.nist.gov/vuln/detail/CVE-2022-0516 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=09a93c1df3eafa43bcdfd7bf837c574911f12f55
- https://bugzilla.redhat.com/show_bug.cgi?id=2050237
- https://access.redhat.com/errata/RHSA-2022:0825
- https://access.redhat.com/errata/RHSA-2022:0777
- https://access.redhat.com/security/cve/cve-2022-0516
- https://www.debian.org/security/2022/dsa-5092
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=09a93c1df3eafa43bcdfd7bf837c574911f12f55
- https://security.netapp.com/advisory/ntap-20220331-0009/
- https://launchpad.net/bugs/cve/CVE-2022-0516
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2053178
- https://git.kernel.org/linus/2c212e1baedcd782b2535a3f86bc491977677c0e
- https://www.openwall.com/lists/oss-security/2022/02/11/2
- https://security-tracker.debian.org/tracker/CVE-2022-0516
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0516
- https://nvd.nist.gov/vuln/detail/CVE-2022-0516
- https://ubuntu.com/security/CVE-2022-0516
Frequently Asked Questions
What is the severity of CVE-2022-0516?
CVE-2022-0516 is classified as a medium severity vulnerability due to its potential for unauthorized memory writes.
What software is affected by CVE-2022-0516?
CVE-2022-0516 affects specific versions of the Linux kernel including 4.18.0-348.20.1.el8_5 and others up to version 5.17.
How do I fix CVE-2022-0516?
To fix CVE-2022-0516, you should update to the patched versions of the kernel provided by your distribution, such as Red Hat or Debian.
Who can exploit CVE-2022-0516?
CVE-2022-0516 can be exploited by a local attacker with normal user privileges.
What are the consequences of CVE-2022-0516 exploitation?
Exploitation of CVE-2022-0516 may allow an attacker to perform unauthorized memory write access, potentially leading to data corruption or further privilege escalation.
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