REDHAT-BUG-2337461: Medium severity GNU GRUB vulnerability
Extra SOF0 marker in JPEG file may lead to a out-of-bounds write. An attacker may leverage this by crafting a malicious JPEG file, leading the grub's JPEG parser to fail the bounds checking in its internal buffer resulting in a out-of-bounds memory write. The possibility of overwriting sensitive information in order to bypass secure boot protections are not discarded.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2337461?
The severity of REDHAT-BUG-2337461 is considered critical due to the potential for an out-of-bounds write leading to memory corruption.
How do I fix REDHAT-BUG-2337461?
To fix REDHAT-BUG-2337461, update GNU GRUB to the latest version where this vulnerability has been patched.
What types of systems are affected by REDHAT-BUG-2337461?
Systems running GNU GRUB that handle JPEG files are affected by REDHAT-BUG-2337461.
What could an attacker achieve by exploiting REDHAT-BUG-2337461?
An attacker could potentially overwrite sensitive information or execute arbitrary code through the exploitation of REDHAT-BUG-2337461.
Is REDHAT-BUG-2337461 related to any specific file types?
Yes, REDHAT-BUG-2337461 is specifically related to the handling of malicious JPEG files in GNU GRUB.