CVE-2020-11741
Fixed in a distro release EPSS <1%
An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (with active profiling) to obtain sensitive information about other guests, cause a denial of service, or possibly gain privileges. For guests for which "active" profiling was enabled by the administrator, the xenoprof code uses the standard Xen shared ring structure. Unfortunately, this code did not treat the guest as a potential adversary: it trusts the guest not to modify buffer size information or modify head / tail pointers in unexpected ways. This can crash the host (DoS). Privilege escalation cannot be ruled out.
Products: xen, fedoraproject fedora, debian_linux, opensuse leap
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 10 | xen | 4.11.4+24-gddaaccbbab-1~deb10u1 |
| Debian 12 | xen | 4.11.4-1 |
| Debian 13 | xen | 4.11.4-1 |
| Debian 14 | xen | 4.11.4-1 |
| SUSE Enterprise Storage 5 | xen | 4.9.4_06-3.62.1 |
| SUSE HPE Helion OpenStack 8 | xen | 4.9.4_06-3.62.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | xen | 4.10.4_10-3.31.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | xen | 4.10.4_10-3.31.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | xen | 4.12.2_04-3.15.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | xen | 4.12.2_04-3.15.1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | xen | 4.2.5_22-45.36.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | xen | 4.4.4_42-61.52.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | xen | 4.7.6_08-43.64.1 |
| SUSE Linux Enterprise Server 12 SP2-LTSS | xen | 4.7.6_08-43.64.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | xen | 4.9.4_06-3.62.1 |
| 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_04-2.23.1 |
| SUSE Linux Enterprise Server 12 SP5 | xen | 4.12.2_04-3.11.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | xen | 4.7.6_08-43.64.1 |
| 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_04-2.23.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | xen | 4.12.2_04-3.11.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | xen | 4.10.4_10-3.31.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | xen | 4.11.3_04-2.23.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | xen | 4.12.2_04-3.11.1 |
| SUSE OpenStack Cloud 7 | xen | 4.7.6_08-43.64.1 |
| SUSE OpenStack Cloud 8 | xen | 4.9.4_06-3.62.1 |
| 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 |
| Ubuntu 20.04 LTS | xen | 4.11.3+24-g14b62ab3e5-1ubuntu2.3 |
| openSUSE Leap 15.1 | xen | 4.12.2_04-lp151.2.15.1 |