VDB
CVE-2020-29485
CVE-2020-29485
PUBLISHED
CVSS 5.5 MEDIUM
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.
EPSS 0.41% · 33.4th percentile
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.41%
33.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | xen | *, 4.11.3+24-g14b62ab3e5-1ubuntu1, 4.11.3+24-g14b62ab3e5-1ubuntu2 |
| Ubuntu:18.04:LTS | xen | 4.9.0-0ubuntu4, 4.9.2-0ubuntu1, 4.9.0-0ubuntu3 |
| Ubuntu:16.04:LTS | xen | 4.5.1-0ubuntu1, 4.6.5-0ubuntu1.2, 4.5.1-0ubuntu2 |
Timeline
- Dec 15, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 3, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 5, 2022 EPSS Score
- Jul 8, 2022 EPSS Score
- Sep 10, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-29485 advisory
- https://www.debian.org/security/2020/dsa-4812 advisory
- https://xenbits.xen.org/xsa/advisory-330.html third-party-advisory
- https://xenbits.xenproject.org/xsa/advisory-330.txt third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-29485 third-party-advisory