CVE-2024-49975 uprobes: fix kernel info leak via "[uprobes]" vma
A local attacker can read uninitialized kernel memory via the uprobes virtual memory area, potentially exposing sensitive kernel data.
- 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-2024-49975?
CVE-2024-49975 is a medium-severity vulnerability in Linux kernel, published on 21 Oct 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:
uprobes: fix kernel info leak via "[uprobes]" vma
xol_add_vma() maps the uninitialized page allocated by __create_xol_area() into userspace. On some architectures (x86) this memory is readable even without VM_READ, VM_EXEC results in the same pgprot_t as VM_EXEC|VM_READ, although this doesn't really matter, debugger can read this memory anyway.
Weakness: CWE-401
Which versions are affected by CVE-2024-49975?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-49975?
Apply the vendor's patch.
Is CVE-2024-49975 being exploited?
There is no known exploitation of CVE-2024-49975 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-51395, BELL-CVE-2024-49975, DEBIAN-CVE-2024-49975, GHSA-24vf-v4v3-xgmr, UBUNTU-CVE-2024-49975.