Homepage

Memory Leak The advisory has been revoked - it doesn't affect any version of package xen  (opens in a new tab)

Threat Intelligence

EPSS
0.41% (35th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU2204-XEN-2785988
  • published19 Dec 2020
  • disclosed15 Dec 2020
Report a new vulnerability Found a mistake?

Introduced: 15 Dec 2020

CVE-2020-29485  (opens in a new tab)
CWE-401  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:22.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Ubuntu.

An issue was discovered in Xen 4.6 through 4.14.x. When acting upon a guest XS_RESET_WATCHES request, not all tracking information is freed. A guest can cause unbounded memory usage in oxenstored. This can lead to a system-wide DoS. Only systems using the Ocaml Xenstored implementation are vulnerable. Systems using the C Xenstored implementation are not vulnerable.