CVE-2020-29568

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Summary

CVECVE-2020-29568
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-15 17:15:00 UTC
Updated2022-04-26 16:12:00 UTC
DescriptionAn issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.

Risk And Classification

Problem Types: CWE-770

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Xen Xen All All All All
Operating System Xen Xen All All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2557-1] linux-4.19 security update MLIST lists.debian.org Mailing List, Third Party Advisory
[SECURITY] [DLA 2586-1] linux security update MLIST lists.debian.org Mailing List, Third Party Advisory
XSA-349 - Xen Security Advisories MISC xenbits.xenproject.org Patch, Vendor Advisory
Debian -- Security Information -- DSA-4843-1 linux DEBIAN www.debian.org Third Party Advisory
Xen: Multiple vulnerabilities (GLSA 202107-30) — Gentoo security GENTOO security.gentoo.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 353100 Amazon Linux Security Advisory for kernel : ALAC2012-2021-024
  • 353101 Amazon Linux Security Advisory for kmod-mlx5 : ALAC2012-2021-025
  • 353102 Amazon Linux Security Advisory for kmod-sfc : ALAC2012-2021-026
  • 353132 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-019
  • 377779 Citrix XenServer Security Updates (CTX286756)
  • 390233 Oracle Managed Virtualization (VM) Server for x86 Security Update for kernel (OVMSA-2021-0005)
  • 501426 Alpine Linux Security Update for linux-lts
  • 504121 Alpine Linux Security Update for linux-lts
  • 6140329 AWS Bottlerocket Security Update for kernel (GHSA-gcvv-23g8-m2w8)
  • 690416 Free Berkeley Software Distribution (FreeBSD) Security Update for (5d91370b-61fd-11eb-b87a-901b0ef719ab)
  • 710038 Gentoo Linux Xen Multiple vulnerabilities (GLSA 202107-30)
  • 750373 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0241-1)
  • 750428 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:0075-1)
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