CVE-2020-29485
Fixed in a distro release EPSS <1%
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.
Products: xen, debian_linux, fedoraproject fedora
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.11 | xen | 4.13.2-r3 |
| Alpine 3.12 | xen | 4.13.2-r3 |
| Alpine 3.13 | xen | 4.14.1-r0 |
| Alpine 3.14 | xen | 4.14.1-r0 |
| Alpine 3.15 | xen | 4.14.1-r0 |
| Alpine 3.16 | xen | 4.14.1-r0 |
| Alpine 3.17 | xen | 4.14.1-r0 |
| Alpine 3.18 | xen | 4.14.1-r0 |
| Alpine 3.19 | xen | 4.14.1-r0 |
| Alpine 3.20 | xen | 4.14.1-r0 |
| Alpine 3.21 | xen | 4.14.1-r0 |
| Alpine 3.22 | xen | 4.14.1-r0 |
| Alpine 3.23 | xen | 4.14.1-r0 |
| Alpine 3.24 | xen | 4.14.1-r0 |
| Debian 10 | xen | 4.11.4+57-g41a822c392-2 |
| Debian 12 | xen | 4.14.0+88-g1d1d1f5391-1 |
| Debian 13 | xen | 4.14.0+88-g1d1d1f5391-1 |
| Debian 14 | xen | 4.14.0+88-g1d1d1f5391-1 |
| Ubuntu 16.04 LTS | xen | no fix |
| Ubuntu 18.04 LTS | xen | no fix |
| Ubuntu 20.04 LTS | xen | no fix |