CVE-2024-50139
7.9 · HIGHOverview
CVE-2024-50139 is a high-severity vulnerability affecting linux linux_kernel. It was published on November 7, 2024 and has a CVSS 3.1 base score of 7.9 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: Fix shift-out-of-bounds bug
Fix a shift-out-of-bounds bug reported by UBSAN when running
VM with MTE enabled host kernel.
UBSAN: shift-out-of-bounds in arch/arm64/kvm/sys_regs.c:1988:14
shift exponent 33 is too large for 32-bit type 'int'
CPU: 26 UID: 0 PID: 7629 Comm: qemu-kvm Not tainted 6.12.0-rc2 #34
Hardware name: IEI NF5280R7/Mitchell MB, BIOS 00.00. 2024-10-12 09:28:54 10/14/2024
Call trace:
dump_backtrace+0xa0/0x128
show_stack+0x20/0x38
dump_stack_lvl+0x74/0x90
dump_stack+0x18/0x28
__ubsan_handle_shift_out_of_bounds+0xf8/0x1e0
reset_clidr+0x10c/0x1c8
kvm_reset_sys_regs+0x50/0x1c8
kvm_reset_vcpu+0xec/0x2b0
__kvm_vcpu_set_target+0x84/0x158
kvm_vcpu_set_target+0x138/0x168
kvm_arch_vcpu_ioctl_vcpu_init+0x40/0x2b0
kvm_arch_vcpu_ioctl+0x28c/0x4b8
kvm_vcpu_ioctl+0x4bc/0x7a8
__arm64_sys_ioctl+0xb4/0x100
invoke_syscall+0x70/0x100
el0_svc_common.constprop.0+0x48/0xf0
do_el0_svc+0x24/0x38
Remediation
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux | linux_kernel | >= 6.3, < 6.6.59 | Affected |
Frequently Asked Questions
What is CVE-2024-50139?
CVE-2024-50139 is a high-severity vulnerability affecting linux linux_kernel. It was published on November 7, 2024 and has a CVSS 3.1 base score of 7.9 (HIGH).
How severe is CVE-2024-50139?
This vulnerability has a CVSS 3.1 base score of 7.9, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2024-50139?
Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2024-50139?
CyberStrike's AI-powered security agents can automatically detect CVE-2024-50139 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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