First published: Mon Jan 13 2025(Updated: )
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 | Affected Version | How to fix |
---|---|---|
Ubuntu GRUB (GNU GRand Unified Bootloader) |
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The severity of REDHAT-BUG-2337461 is considered critical due to the potential for an out-of-bounds write leading to memory corruption.
To fix REDHAT-BUG-2337461, update GNU GRUB to the latest version where this vulnerability has been patched.
Systems running GNU GRUB that handle JPEG files are affected by REDHAT-BUG-2337461.
An attacker could potentially overwrite sensitive information or execute arbitrary code through the exploitation of REDHAT-BUG-2337461.
Yes, REDHAT-BUG-2337461 is specifically related to the handling of malicious JPEG files in GNU GRUB.