CVE-2024-46826 ELF: fix kernel.randomize_va_space double read
A race condition in the Linux kernel ELF loader allows inconsistent ASLR settings, potentially weakening address space randomization protections.
- 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-2024-46826?
CVE-2024-46826 is a medium-severity vulnerability in Linux kernel, published on 27 Sep 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:
ELF: fix kernel.randomize_va_space double read
ELF loader uses "randomize_va_space" twice. It is sysctl and can change at any moment, so 2 loads could see 2 different values in theory with unpredictable consequences.
Issue exactly one load for consistent value across one exec.
Which versions are affected by CVE-2024-46826?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46826?
Apply the vendor's patch.
Is CVE-2024-46826 being exploited?
There is no known exploitation of CVE-2024-46826 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-53327, BELL-CVE-2024-46826, DEBIAN-CVE-2024-46826, GHSA-jr43-7cf9-8vqm, ROOT-OS-DEBIAN-11-CVE-2024-46826, UBUNTU-CVE-2024-46826.