CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0CVE-2023-2019 – Linux Kernel netdevsim Improper Update of Reference Count Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2023-2019
A flaw was found in the Linux kernel's netdevsim device driver, within the scheduling of events. This issue results from the improper management of a reference count. This may allow an attacker to create a denial of service condition on the system. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the scheduling of events. • https://bugzilla.redhat.com/show_bug.cgi?id=2189137 https://github.com/torvalds/linux/commit/180a6a3ee60a https://www.zerodayinitiative.com/advisories/ZDI-CAN-17811 • CWE-911: Improper Update of Reference Count •
CVSS: 8.2EPSS: 0%CPEs: 9EXPL: 1CVE-2023-2008 – Linux Kernel udmabuf Improper Validation of Array Index Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-2008
A flaw was found in the Linux kernel's udmabuf device driver. The specific flaw exists within a fault handler. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an array. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler. • https://github.com/bluefrostsecurity/CVE-2023-2008 https://bugzilla.redhat.com/show_bug.cgi?id=2186862 https://github.com/torvalds/linux/commit/05b252cccb2e5c3f56119d25de684b4f810ba4 https://security.netapp.com/advisory/ntap-20230517-0007 https://www.zerodayinitiative.com/advisories/ZDI-23-441 https://access.redhat.com/security/cve/CVE-2023-2008 • CWE-129: Improper Validation of Array Index •
CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 1CVE-2023-1829 – Use-after-free in tcindex (traffic control index filter) in the Linux Kernel
https://notcve.org/view.php?id=CVE-2023-1829
A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root. We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28. A use-after-free vulnerability was found in the traffic control index filter (tcindex) in the Linux kernel. The tcindex_delete does not properly deactivate filters, which can later lead to double freeing the structure. • https://github.com/lanleft/CVE-2023-1829 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c710f75256bb3cf05ac7b1672c82b92c43f3d28 https://kernel.dance/#8c710f75256bb3cf05ac7b1672c82b92c43f3d28 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-20230601-0001 https://access.redhat.com/security/cve/CVE-2023-1829 https://bugzilla.redhat.com/show_bug. • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-416: Use After Free •
CVSS: 4.7EPSS: 0%CPEs: 3EXPL: 0CVE-2023-1990
https://notcve.org/view.php?id=CVE-2023-1990
A use-after-free flaw was found in ndlc_remove in drivers/nfc/st-nci/ndlc.c in the Linux Kernel. This flaw could allow an attacker to crash the system due to a race problem. • https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html https://lore.kernel.org/all/20230312160837.2040857-1-zyytlz.wz%40163.com • CWE-416: Use After Free •
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 •