CVE-2024-56672
7.0 · HIGHOverview
CVE-2024-56672 is a high-severity vulnerability affecting linux linux_kernel. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.0, 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:
blk-cgroup: Fix UAF in blkcg_unpin_online()
blkcg_unpin_online() walks up the blkcg hierarchy putting the online pin. To
walk up, it uses blkcg_parent(blkcg) but it was calling that after
blkcg_destroy_blkgs(blkcg) which could free the blkcg, leading to the
following UAF:
==================================================================
BUG: KASAN: slab-use-after-free in blkcg_unpin_online+0x15a/0x270
Read of size 8 at addr ffff8881057678c0 by task kworker/9:1/117
CPU: 9 UID: 0 PID: 117 Comm: kworker/9:1 Not tainted 6.13.0-rc1-work-00182-gb8f52214c61a-dirty #48
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS unknown 02/02/2022
Workqueue: cgwb_release cgwb_release_workfn
Call Trace:
<TASK>
dump_stack_lvl+0x27/0x80
print_report+0x151/0x710
kasan_report+0xc0/0x100
blkcg_unpin_online+0x15a/0x270
cgwb_release_workfn+0x194/0x480
process_scheduled_works+0x71b/0xe20
worker
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 | >= 5.7, < 6.1.121 | Affected |
References
Frequently Asked Questions
What is CVE-2024-56672?
CVE-2024-56672 is a high-severity vulnerability affecting linux linux_kernel. It was published on December 27, 2024 and has a CVSS 3.1 base score of 7.0 (HIGH).
How severe is CVE-2024-56672?
This vulnerability has a CVSS 3.1 base score of 7.0, 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-2024-56672?
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-2024-56672?
CyberStrike's AI-powered security agents can automatically detect CVE-2024-56672 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.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2024
View all →Vladimir Kononovich, a Security Researcher has found a flaw that allows for a remote code execution
Team ENVY, a Security Research TEAM has found a flaw that allows for a remote code execution on the
SuiteCRM is an open-source Customer Relationship Management (CRM) software application. Prior to ver
ghtml is software that uses tagged templates for template engine functionality. It is possible to in
Joplin is a free, open source note taking and to-do application. A remote code execution (RCE) vulne
The TLS certificate validation code is flawed. An attacker can obtain a TLS certificate from the Sto
dnsjava is an implementation of DNS in Java. Records in DNS replies are not checked for their releva
eLabFTW is an open source electronic lab notebook for research labs. By uploading specially crafted
A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system
NVIDIA ConnectX Firmware contains a vulnerability where an attacker may cause an improper handling o
reNgine before 2.1.2 allows OS Command Injection if an adversary has a valid session ID. The attack
HCL DRYiCE MyXalytics is impacted by path traversal arbitrary file read vulnerability because it use