Integer Overflow or Wraparound Affecting grub2 package, versions <2.04-9.7.1
Snyk CVSS
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-SLES152-GRUB2-2707293
- published 14 Apr 2022
- disclosed 29 Jul 2020
How to fix?
Upgrade SLES:15.2
grub2
to version 2.04-9.7.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream grub2
package and not the grub2
package as distributed by SLES:15.2
.
See How to fix?
for SLES:15.2
relevant fixed versions and status.
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.
References
- CVE-2020-15707
- E-Mail link for SUSE-SU-2020:2074-1
- Link for SUSE-SU-2020:2074-1
- SUSE Bug 1168994
- SUSE Bug 1173812
- SUSE Bug 1174463
- SUSE Bug 1174570
- SUSE CVE CVE-2020-10713 page
- SUSE CVE CVE-2020-14308 page
- SUSE CVE CVE-2020-14309 page
- SUSE CVE CVE-2020-14310 page
- SUSE CVE CVE-2020-14311 page
- SUSE CVE CVE-2020-15706 page
- SUSE CVE CVE-2020-15707 page
- SUSE Security Ratings
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com
- security@ubuntu.com