公告ID: KYLIN-2020-15707
安全等级: 中等
产品: Kylin V3
发布日期: 2020年7月29日
CVE: CVE-2020-15707
CVSS3评分: 5.7
概述:
There's no mitigation available other than installing the update packages. 描述:
Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions. 系统版本:
KYLIN 3.3.x
KYLIN 3.4.x
受影响包列表:
grub2-1:2.02-0.86.el7_8
grub2-1:2.02-87.el8_2