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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://xenbits.xen.org/xsa/advisory-345.html ↗
- https://xenbits.xen.org/xsa/advisory-345.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html ↗
- https://security.gentoo.org/glsa/202011-06 ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/ ↗
- https://www.debian.org/security/2020/dsa-4804 ↗
- http://www.openwall.com/lists/oss-security/2021/01/19/7 ↗