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Test your applicationsUpgrade SLES:15.4
grub2
to version 2.06-150400.11.55.2 or higher.
Note: Versions mentioned in the description apply only to the upstream grub2
package and not the grub2
package as distributed by SLES
.
See How to fix?
for SLES:15.4
relevant fixed versions and status.
A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention of secure boot protections.