SUSE-SU-2021:14659-1

Source
https://www.suse.com/support/update/announcement/2021/suse-su-202114659-1/
Import Source
https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2021:14659-1.json
JSON Data
https://api.osv.dev/v1/vulns/SUSE-SU-2021:14659-1
Related
Published
2021-03-02T18:03:21Z
Modified
2021-03-02T18:03:21Z
Summary
Security update for grub2
Details

This update for grub2 fixes the following issues:

grub2 now implements the new 'SBAT' method for SHIM based secure boot revocation. (bsc#1182057)

grub2 was updated to the 2.02 version (same as SUSE Linux Enterprise 12 SP3).

Following security issues are fixed that can violate secure boot constraints:

  • CVE-2020-25632: Fixed a use-after-free in rmmod command (bsc#1176711)
  • CVE-2020-25647: Fixed an out-of-bound write in grubusbdevice_initialize() (bsc#1177883)
  • CVE-2020-27749: Fixed a stack buffer overflow in grubparsersplit_cmdline (bsc#1179264)
  • CVE-2020-27779, CVE-2020-14372: Disallow cutmem and acpi commands in secure boot mode (bsc#1179265 bsc#1175970)
  • CVE-2021-20225: Fixed a heap out-of-bounds write in short form option parser (bsc#1182262)
  • CVE-2021-20233: Fixed a heap out-of-bound write due to mis-calculation of space required for quoting (bsc#1182263)
References

Affected packages

SUSE:Linux Enterprise Server 11 SP4-LTSS / grub2

Package

Name
grub2
Purl
purl:rpm/suse/grub2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.02-0.66.26.1

Ecosystem specific

{
    "binaries": [
        {
            "grub2-x86_64-efi": "2.02-0.66.26.1",
            "grub2-x86_64-xen": "2.02-0.66.26.1"
        }
    ]
}