SUSE: CVE-2022-28736: SUSE Linux Security Advisory
Description
There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2's memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.
Solution(s)
- suse-upgrade-grub2
- suse-upgrade-grub2-arm64-efi
- suse-upgrade-grub2-arm64-efi-debug
- suse-upgrade-grub2-branding-upstream
- suse-upgrade-grub2-i386-pc
- suse-upgrade-grub2-i386-pc-debug
- suse-upgrade-grub2-powerpc-ieee1275
- suse-upgrade-grub2-powerpc-ieee1275-debug
- suse-upgrade-grub2-s390x-emu
- suse-upgrade-grub2-s390x-emu-debug
- 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
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- IT-Integrated Remediation Projects
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- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
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