CVE-2019-19580
Fixed in a distro release EPSS 1%
An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations, because of an incomplete fix for CVE-2019-18421. XSA-299 addressed several critical issues in restartable PV type change operations. Despite extensive testing and auditing, some corner cases were missed. A malicious PV guest administrator may be able to escalate their privilege to that of the host. All security-supported versions of Xen are vulnerable. Only x86 systems are affected. Arm systems are not affected. Only x86 PV guests can leverage the vulnerability. x86 HVM and PVH guests cannot leverage the vulnerability. Note that these attacks require very precise timing, which may be difficult to exploit in practice.
Products: xen, fedoraproject fedora
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.10 | xen | 4.12.2-r0 |
| Alpine 3.11 | xen | 4.13.0-r0 |
| Alpine 3.12 | xen | 4.13.0-r0 |
| Alpine 3.13 | xen | 4.13.0-r0 |
| Alpine 3.14 | xen | 4.13.0-r0 |
| Alpine 3.15 | xen | 4.13.0-r0 |
| Alpine 3.16 | xen | 4.13.0-r0 |
| Alpine 3.17 | xen | 4.13.0-r0 |
| Alpine 3.18 | xen | 4.13.0-r0 |
| Alpine 3.19 | xen | 4.13.0-r0 |
| Alpine 3.20 | xen | 4.13.0-r0 |
| Alpine 3.21 | xen | 4.13.0-r0 |
| Alpine 3.22 | xen | 4.13.0-r0 |
| Alpine 3.23 | xen | 4.13.0-r0 |
| Alpine 3.24 | xen | 4.13.0-r0 |
| Alpine 3.8 | xen | 4.10.4-r2 |
| Alpine 3.9 | xen | 4.11.3-r1 |
| Debian 10 | xen | 4.11.3+24-g14b62ab3e5-1~deb10u1 |
| Debian 12 | xen | 4.11.3+24-g14b62ab3e5-1 |
| Debian 13 | xen | 4.11.3+24-g14b62ab3e5-1 |
| Debian 14 | xen | 4.11.3+24-g14b62ab3e5-1 |
| Debian 9 | xen | 4.8.5.final+shim4.10.4-1+deb9u12 |
| SUSE Enterprise Storage 5 | xen | 4.9.4_06-3.62.1 |
| SUSE Enterprise Storage 5 | xen | 4.9.4_06-3.59.1 |
| SUSE HPE Helion OpenStack 8 | xen | 4.9.4_06-3.62.1 |
| SUSE HPE Helion OpenStack 8 | xen | 4.9.4_06-3.59.1 |
| SUSE Linux Enterprise Desktop 12 SP4 | xen | 4.11.3_02-2.20.1 |
| SUSE Linux Enterprise Module for Basesystem 15 | xen | 4.10.4_08-3.28.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | xen | 4.12.1_06-3.9.1 |
| SUSE Linux Enterprise Module for Server Applications 15 | xen | 4.10.4_08-3.28.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | xen | 4.12.1_06-3.9.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | xen | 4.4.4_42-61.52.1 |
| SUSE Linux Enterprise Server 12 SP1-LTSS | xen | 4.5.5_28-22.64.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | xen | 4.7.6_06-43.59.1 |
| SUSE Linux Enterprise Server 12 SP2-LTSS | xen | 4.7.6_06-43.59.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | xen | 4.9.4_06-3.62.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | xen | 4.9.4_06-3.59.1 |
| SUSE Linux Enterprise Server 12 SP3-LTSS | xen | 4.9.4_06-3.59.1 |
| SUSE Linux Enterprise Server 12 SP3-LTSS | xen | 4.9.4_06-3.62.1 |
| SUSE Linux Enterprise Server 12 SP4 | xen | 4.11.3_02-2.20.1 |
| SUSE Linux Enterprise Server 12 SP5 | xen | 4.12.1_10-3.8.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | xen | 4.5.5_28-22.64.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | xen | 4.7.6_06-43.59.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | xen | 4.9.4_06-3.59.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | xen | 4.9.4_06-3.62.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | xen | 4.11.3_02-2.20.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | xen | 4.12.1_10-3.8.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | xen | 4.11.3_02-2.20.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | xen | 4.12.1_10-3.8.1 |
| SUSE OpenStack Cloud 7 | xen | 4.7.6_06-43.59.1 |
| SUSE OpenStack Cloud 8 | xen | 4.9.4_06-3.59.1 |
| SUSE OpenStack Cloud 8 | xen | 4.9.4_06-3.62.1 |
| SUSE OpenStack Cloud Crowbar 8 | xen | 4.9.4_06-3.59.1 |
| SUSE OpenStack Cloud Crowbar 8 | xen | 4.9.4_06-3.62.1 |
| Ubuntu 16.04 LTS | xen | no fix |
| Ubuntu 18.04 LTS | xen | no fix |
| openSUSE Leap 15.1 | xen | 4.12.1_06-lp151.2.9.1 |