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CVE-2020-29570

Description

An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.

Risk Information

Base Score
6.2
MODERATE
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.06

Associated Vulnerability

VulnerabilityOS Platform
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-debugsource-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-doc-html-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-libs-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-libs-32bit-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-libs-debuginfo-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-libs-debuginfo-32bit-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-tools-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-tools-debuginfo-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-tools-domU-4.12.4_06-3.36.1.x86_64.rpmLinux
SUSE-SU-2020:3880-1(SUSE Linux Enterprise Server 12-SP5 ) xen-tools-domU-debuginfo-4.12.4_06-3.36.1.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234