CVE-2021-38203
First published: Sun Aug 08 2021(Updated: )
btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.13.4 | |
| All of | ||
| netapp hci bootstrap os | ||
| netapp hci compute node | ||
| netapp hci management node | ||
| netapp solidfire | ||
| All of | ||
| NetApp Element Software | ||
| netapp hci storage node | ||
| netapp hci bootstrap os | ||
| netapp hci compute node | ||
| NetApp Element Software | ||
| netapp hci storage node | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- https://github.com/torvalds/linux/commit/1cb3db1cf383a3c7dbda1aa0ce748b0958759947
- https://security.netapp.com/advisory/ntap-20210902-0010/
- https://launchpad.net/bugs/cve/CVE-2021-38203
- https://git.kernel.org/linus/1cb3db1cf383a3c7dbda1aa0ce748b0958759947
- https://security-tracker.debian.org/tracker/CVE-2021-38203
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38203
- https://nvd.nist.gov/vuln/detail/CVE-2021-38203
- https://ubuntu.com/security/CVE-2021-38203
Frequently Asked Questions
What is the severity of CVE-2021-38203?
CVE-2021-38203 has been classified as a denial of service (DoS) vulnerability impacting stability due to potential deadlocks during allocation.
How do I fix CVE-2021-38203?
To fix CVE-2021-38203, upgrade the Linux kernel to version 5.13.4 or later.
Which versions of the Linux kernel are affected by CVE-2021-38203?
CVE-2021-38203 affects Linux kernel versions prior to 5.13.4.
What types of systems are impacted by CVE-2021-38203?
CVE-2021-38203 impacts systems using the affected versions of the Linux kernel, including certain NetApp products.
Is there a workaround for CVE-2021-38203?
There is no specific workaround for CVE-2021-38203; updating to a patched version of the Linux kernel is the recommended action.
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