CVE-2021-20194: Input Validation
First published: Tue Jan 05 2021(Updated: )
Last updated 29 November 2024
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >5.2 | |
| redhat openshift container platform | =4.4 | |
| redhat openshift container platform | =4.5 | |
| redhat openshift container platform | =4.6 | |
| Red Hat Enterprise Linux | =8.0 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.13-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1912683
- https://security.netapp.com/advisory/ntap-20210326-0003/
- https://launchpad.net/bugs/cve/CVE-2021-20194
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1926781
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1912683#c12
- https://access.redhat.com/errata/RHSA-2021:4140
- https://access.redhat.com/errata/RHSA-2021:4356
- https://patchwork.kernel.org/project/netdevbpf/patch/20210122164232.61770-1-loris.reiff@liblor.ch/#23921223
- https://security-tracker.debian.org/tracker/CVE-2021-20194
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20194
- https://nvd.nist.gov/vuln/detail/CVE-2021-20194
- https://ubuntu.com/security/CVE-2021-20194
Frequently Asked Questions
What is the severity of CVE-2021-20194?
CVE-2021-20194 has a severity rating that indicates it could lead to serious security issues within the affected Linux kernel versions.
How do I fix CVE-2021-20194?
To fix CVE-2021-20194, update the Linux kernel to a version that is patched against this vulnerability, such as those mentioned in the advisory.
Which software versions are affected by CVE-2021-20194?
CVE-2021-20194 affects Linux kernel versions above 5.2 and specific versions of Red Hat OpenShift Container Platform and Red Hat Enterprise Linux.
What configurations increase the risk of CVE-2021-20194?
The risk of CVE-2021-20194 increases if the kernel is compiled with specific configuration parameters like CONFIG_BPF_SYSCALL and CONFIG_BPF.
Is CVE-2021-20194 exploitable remotely?
Yes, CVE-2021-20194 can be exploited remotely under certain conditions, making it critical to address in impacted environments.
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