CVE-2020-27672

Name
CVE-2020-27672
Description
An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.
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.xen.org/xsa/advisory-345.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html
Third Party Advisory http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html
GENTOO https://security.gentoo.org/glsa/202011-06
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/
DEBIAN https://www.debian.org/security/2020/dsa-4804
MLIST http://www.openwall.com/lists/oss-security/2021/01/19/7
CONFIRM http://xenbits.xen.org/xsa/advisory-345.html

Match rules

CPE URI Source package Min version Max version
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:* xen >= 3.2.0 <= 4.14.0

Vulnerable and fixed packages

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