Synopsis:          Moderate: grub2 security update
Advisory ID:       SLSA-2021:0699-1
Issue Date:        2021-03-03
CVE Numbers:       CVE-2020-14372
                   CVE-2020-25632
                   CVE-2020-25647
                   CVE-2020-27749
                   CVE-2020-27779
                   CVE-2021-20225
                   CVE-2021-20233
--

Security Fix(es):

* grub2: acpi command allows privileged user to load crafted ACPI tables
when Secure Boot is enabled (CVE-2020-14372)

* grub2: Use-after-free in rmmod command (CVE-2020-25632)

* grub2: Out-of-bounds write in grub_usb_device_initialize()
(CVE-2020-25647)

* grub2: Stack buffer overflow in grub_parser_split_cmdline()
(CVE-2020-27749)

* grub2: cutmem command allows privileged user to remove memory regions
when Secure Boot is enabled (CVE-2020-27779)

* grub2: Heap out-of-bounds write in short form option parser
(CVE-2021-20225)

* grub2: Heap out-of-bounds write due to miscalculation of space required
for quoting (CVE-2021-20233)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
--

SL7
  x86_64
    grub2-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-debuginfo-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-efi-ia32-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-efi-x64-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-pc-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-tools-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-tools-extra-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-tools-minimal-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-efi-ia32-cdboot-2.02-0.87.el7_9.2.x86_64.rpm
    grub2-efi-x64-cdboot-2.02-0.87.el7_9.2.x86_64.rpm
  noarch
    grub2-common-2.02-0.87.el7_9.2.noarch.rpm
    grub2-efi-ia32-modules-2.02-0.87.el7_9.2.noarch.rpm
    grub2-efi-x64-modules-2.02-0.87.el7_9.2.noarch.rpm
    grub2-pc-modules-2.02-0.87.el7_9.2.noarch.rpm
    grub2-efi-aa64-modules-2.02-0.87.el7_9.2.noarch.rpm
    grub2-ppc-modules-2.02-0.87.el7_9.2.noarch.rpm
    grub2-ppc64-modules-2.02-0.87.el7_9.2.noarch.rpm
    grub2-ppc64le-modules-2.02-0.87.el7_9.2.noarch.rpm

- Scientific Linux Development Team