VulnerabilityModified
CVE-2021-28038
A host OS denial of service may occur during misbehavior of a networking frontend driver.
MEDIUM 6.5EPSS 0.71%
Does this matter?
Lower severity and a low EPSS score (0.71%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.71% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- linux/linux kernel · debian/debian linux · netapp/cloud backup · netapp/solidfire baseboard management controller firmware
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2021/03/05/1Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-367.htmlPatch, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2991397d23ec597405b116d96de3813420bdcbc3
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third 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 List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-367.htmlPatch, Vendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2991397d23ec597405b116d96de3813420bdcbc3
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.htmlMailing List, Third 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.