high7.0
CVE-2020-27672
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 privi…
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Xen | Xen | from 3.2.0 through 4.14.0 |
| Fedoraproject | Fedora | Version 31 |
| Opensuse | Leap | Versions 15.1, 15.2 |
| Debian | Debian Linux | Version 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html
- http://www.openwall.com/lists/oss-security/2021/01/19/7
- http://xenbits.xen.org/xsa/advisory-345.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/
- https://security.gentoo.org/glsa/202011-06
- https://www.debian.org/security/2020/dsa-4804
- 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
- http://www.openwall.com/lists/oss-security/2021/01/19/7
- http://xenbits.xen.org/xsa/advisory-345.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/
- https://security.gentoo.org/glsa/202011-06
- https://www.debian.org/security/2020/dsa-4804
- https://xenbits.xen.org/xsa/advisory-345.html