CVE-2024-11263 arch: riscv: userspace: potential security risk when CONFIG_RISCV_GP=y

Critical 9.4 Published Updated

Enabling global pointer relative addressing in Zephyr RTOS may expose security risks by altering memory access patterns for global symbols.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-11263?

CVE-2024-11263 is a critical vulnerability in Zephyrproject Zephyr, published on 15 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

When the Global Pointer (GP) relative addressing is enabled (CONFIG_RISCV_GP=y), the gp reg points at 0x800 bytes past the start of the .sdata section which is then used by the linker to relax accesses to global symbols.

Weakness: CWE-270

Which versions are affected by CVE-2024-11263?

It affects 1 product.

Products include Zephyrproject Zephyr.

How do I fix CVE-2024-11263?

No fix has been published for CVE-2024-11263 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-11263 being exploited?

There is no known exploitation of CVE-2024-11263 in the wild and no public exploit code.

All Zephyrproject Zephyr vulnerabilities

Sources

Also known as GHSA-jjf3-7x72-pqm9.

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