CVE-2020-29485
Published: 15 December 2020
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.
Priority
CVSS 3 base score: 5.5
Status
Package | Release | Status |
---|---|---|
xen Launchpad, Ubuntu, Debian |
Upstream |
Needs triage
|
Ubuntu 21.04 (Hirsute Hippo) |
Needed
|
|
Ubuntu 20.10 (Groovy Gorilla) |
Needed
|
|
Ubuntu 20.04 LTS (Focal Fossa) |
Needed
|
|
Ubuntu 18.04 LTS (Bionic Beaver) |
Needed
|
|
Ubuntu 16.04 LTS (Xenial Xerus) |
Needed
|
|
Ubuntu 14.04 ESM (Trusty Tahr) |
Does not exist
|
|
Binaries built from this source package are in Universe and so are supported by the community. |
Notes
Author | Note |
---|---|
mdeslaur | hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary |