It is suspected that this package is vulnerable to a security vulnerability in LZO. As such we ask maintainers with packages suspected to be vulnerable to verify if the package is (or have been) affected. Please see the information contained in the tracker bug 515246. "An integer overflow may occur when processing any variant of a "literal run" in the lzo1x_decompress_safe function. Each of these three locations is subject to an integer overflow when processing zero bytes.", additional information about the upstream vulnerability is available at http://seclists.org/oss-sec/2014/q2/665
The relevant code seems to exist in sys-boot/grub:2 in grub-core/lib/minilzo/minilzo.c. I have no idea how to "fix" it; I will leave that to upstream.
Thanks. Do you have the upstream bug ID tracking this?
I am not aware of a bug report upstream as of yet.
I've filed an upstream bug on https://savannah.gnu.org/bugs/index.php?42635
Kristian, maybe you want to ping the bug again? Library is still not updated in grub's git master.
(In reply to Thomas Deutschmann from comment #5) > Kristian, maybe you want to ping the bug again? Library is still not updated > in grub's git master. I tend to agree with the assessment that severity is low on this
Upstream has no concerns of exploit with this and nothing has been found in the wild. Furthermore, if a possible exploit existed then usual security measures would prevent it.
