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SUSE: CVE-2020-14311: SUSE Linux Security Advisory

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SUSE: CVE-2020-14311: SUSE Linux Security Advisory

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:P)
Published
07/29/2020
Created
08/05/2020
Added
07/31/2020
Modified
10/22/2021

Description

There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.

Solution(s)

  • suse-upgrade-grub2
  • suse-upgrade-grub2-arm64-efi
  • suse-upgrade-grub2-branding-upstream
  • suse-upgrade-grub2-i386-efi
  • suse-upgrade-grub2-i386-efi-debug
  • suse-upgrade-grub2-i386-pc
  • suse-upgrade-grub2-i386-pc-debug
  • suse-upgrade-grub2-i386-xen
  • suse-upgrade-grub2-powerpc-ieee1275
  • suse-upgrade-grub2-s390x-emu
  • suse-upgrade-grub2-snapper-plugin
  • suse-upgrade-grub2-systemd-sleep-plugin
  • suse-upgrade-grub2-x86_64-efi
  • suse-upgrade-grub2-x86_64-efi-debug
  • suse-upgrade-grub2-x86_64-xen

References

  • SUSE-SU-2020:14440-1
  • SUSE-SU-2020:2073-1
  • SUSE-SU-2020:2074-1
  • SUSE-SU-2020:2076-1
  • SUSE-SU-2020:2077-1
  • SUSE-SU-2020:2078-1
  • SUSE-SU-2020:2079-1
  • USN-4432-1
  • USN-4432-2
  • CVE-2020-14311
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