CVE-2020-29568

Name
CVE-2020-29568
Description
An 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.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Patch https://xenbits.xenproject.org/xsa/advisory-349.html
Third Party Advisory https://www.debian.org/security/2021/dsa-4843
Mailing List https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
Mailing List https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
GENTOO https://security.gentoo.org/glsa/202107-30

Match rules

CPE URI Source package Min version Max version
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* xen >= None <= 4.14.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
xen 3.10-main 4.12.4-r0 None possibly vulnerable
xen 3.11-main 4.13.4-r2 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
xen 3.12-main 4.13.4-r3 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable