Grub2: grub-core/gettext: integer overflow leads to heap oob write and read.

When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

跨界内存写

GRUB 缓冲区错误漏洞

GNU GRUB是GNU社区的一款Linux系统引导程序。 GRUB存在缓冲区错误漏洞，该漏洞源于.mo文件读取时整数溢出未校验，会导致越界读写并绕过安全启动。

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