Vulnerability Description
An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.39, < 4.4.260 |
| Debian | Debian Linux | 9.0 |
| Netapp | Cloud Backup | - |
| Netapp | Solidfire Baseboard Management Controller Firmware | - |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/03/05/1Mailing ListPatchThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-367.htmlPatchVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29913
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00035.htmlThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210409-0001/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/03/05/1Mailing ListPatchThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-367.htmlPatchVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29913
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00035.htmlThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210409-0001/Third Party Advisory
FAQ
What is CVE-2021-28038?
CVE-2021-28038 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result...
How severe is CVE-2021-28038?
CVE-2021-28038 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-28038?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Netapp Cloud Backup, Netapp Solidfire Baseboard Management Controller Firmware.