CVE-2024-50264 vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans
A dangling pointer in the Linux kernel vsock/virtio module can lead to a use-after-free, potentially allowing code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-50264?
CVE-2024-50264 is a high-severity use after free vulnerability in Linux kernel, published on 19 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans
During loopback communication, a dangling pointer can be created in vsk->trans, potentially leading to a Use-After-Free condition. This issue is resolved by initializing vsk->trans to NULL.
Weakness: CWE-416
Which versions are affected by CVE-2024-50264?
It affects 1 product.
Linux distribution packages (6)
kgraft-patch-SLE12-SP5_Update_62 SUSE:Linux Enterprise Live Patching 12 SP5 | All versions | 2-8.6.1 |
kernel-livepatch-SLE15-SP3_Update_50 SUSE:Linux Enterprise Live Patching 15 SP3 | All versions | 2-150300.7.6.1 |
kernel-livepatch-SLE15-SP4_Update_33 SUSE:Linux Enterprise Live Patching 15 SP4 | All versions | 2-150400.9.8.1 |
kernel-livepatch-SLE15-SP6-RT_Update_0 SUSE:Linux Enterprise Live Patching 15 SP6 | All versions | 7-150600.3.1 |
kernel-livepatch-SLE15-SP6_Update_0 SUSE:Linux Enterprise Live Patching 15 SP6 | All versions | 8-150600.4.16.1 |
kernel-livepatch-SLE15-SP6_Update_5 SUSE:Linux Enterprise Live Patching 15 SP6 | All versions | 2-150600.13.6.1 |
Products include Linux kernel.
How do I fix CVE-2024-50264?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-50264 being exploited?
There is no known exploitation of CVE-2024-50264 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as A-378870958, ASB-A-378870958, AZL-53507, AZL-53672, BELL-CVE-2024-50264, DEBIAN-CVE-2024-50264 and 5 more.