CVE-2021-28691

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Summary

CVECVE-2021-28691
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-06-29 12:15:00 UTC
Updated2022-04-06 16:46:00 UTC
DescriptionGuest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.

Risk And Classification

Problem Types: CWE-416

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Application Netapp Cloud Backup - All All All
Hardware Netapp H300e - All All All
Operating System Netapp H300e Firmware - All All All
Hardware Netapp H300s - All All All
Operating System Netapp H300s Firmware - All All All
Hardware Netapp H410c - All All All
Operating System Netapp H410c Firmware - All All All
Hardware Netapp H410s - All All All
Operating System Netapp H410s Firmware - All All All
Hardware Netapp H500e - All All All
Operating System Netapp H500e Firmware - All All All
Hardware Netapp H500s - All All All
Operating System Netapp H500s Firmware - All All All
Hardware Netapp H700e - All All All
Operating System Netapp H700e Firmware - All All All
Hardware Netapp H700s - All All All
Operating System Netapp H700s Firmware - All All All

References

ReferenceSourceLinkTags
Xen: Multiple vulnerabilities (GLSA 202107-30) — Gentoo security GENTOO security.gentoo.org
xenbits.xenproject.org/xsa/advisory-374.txt MISC xenbits.xenproject.org
CVE-2021-28691 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Array

Legacy QID Mappings

  • 180071 Debian Security Update for linux (CVE-2021-28691)
  • 198436 Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-5015-1) (Sequoia)
  • 198465 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5046-1)
  • 198468 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5050-1)
  • 353158 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.10-2022-002
  • 710038 Gentoo Linux Xen Multiple vulnerabilities (GLSA 202107-30)
  • 900084 CBL-Mariner Linux Security Update for kernel 5.10.52.1
  • 900304 CBL-Mariner Linux Security Update for kernel 5.10.57.1
  • 900319 CBL-Mariner Linux Security Update for kernel 5.10.60.1
  • 900887 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6537-1)
  • 903024 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4375)
  • 906029 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (4375-1)
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