CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2023-30456 – kernel: KVM: nVMX: missing consistency checks for CR0 and CR4
https://notcve.org/view.php?id=CVE-2023-30456
An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4. A flaw was found in the KVM's Intel nested virtualization feature (nVMX). The effective values of the guest CR0 and CR4 registers could differ from those included in the VMCS12. In rare circumstances (i.e., kvm_intel module loaded with parameters nested=1 and ept=0) this could allow a malicious guest to crash the host system, causing a denial of service. • http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8 https://github.com/torvalds/linux/commit/112e66017bff7f2837030f34c2bc19501e9212d5 https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html https://security.netapp.com/advisory/ntap-20230511-0007 https://access.redhat.com/security/cve/CVE-2023-30456 https://bugzilla&# • CWE-358: Improperly Implemented Security Check for Standard •
CVSS: 4.4EPSS: 0%CPEs: 42EXPL: 0CVE-2023-20676
https://notcve.org/view.php?id=CVE-2023-20676
In wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588569; Issue ID: ALPS07628518. • https://corp.mediatek.com/product-security-bulletin/April-2023 • CWE-125: Out-of-bounds Read •
CVSS: 4.4EPSS: 0%CPEs: 42EXPL: 0CVE-2023-20679
https://notcve.org/view.php?id=CVE-2023-20679
In wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588413; Issue ID: ALPS07588453. • https://corp.mediatek.com/product-security-bulletin/April-2023 • CWE-125: Out-of-bounds Read •
CVSS: 4.4EPSS: 0%CPEs: 42EXPL: 0CVE-2023-20674
https://notcve.org/view.php?id=CVE-2023-20674
In wlan, there is a possible out of bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588569; Issue ID: ALPS07588552. • https://corp.mediatek.com/product-security-bulletin/April-2023 • CWE-125: Out-of-bounds Read •
CVSS: 4.4EPSS: 0%CPEs: 36EXPL: 0CVE-2023-20660
https://notcve.org/view.php?id=CVE-2023-20660
In wlan, there is a possible out of bounds read due to an integer overflow. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07588383; Issue ID: ALPS07588383. • https://corp.mediatek.com/product-security-bulletin/April-2023 • CWE-190: Integer Overflow or Wraparound •