漏洞标题
Grub2: reader/jpeg: 在解析JPEG时堆溢出写漏洞
漏洞描述信息
在 grub2 中发现了一个漏洞。一个特制的 JPEG 文件可以使 grub2 的 JPEG 解析器错误地检查其内部缓冲区的边界,从而导致越界写入。不能排除此漏洞被利用来覆盖敏感信息从而绕过安全启动保护的可能性。
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
漏洞类别
跨界内存写
漏洞标题
Grub2: reader/jpeg: heap oob write during jpeg parsing
漏洞描述信息
A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is not discarded.
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
漏洞类别
跨界内存写