CVE-2020-15707: GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.
Ubuntu · grub2 in Ubuntu
Vendor fix available · Affected: Ubuntu grub2 in Ubuntu · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 75% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Ubuntu · grub2 in Ubuntufrom 20.04 LTS before 2.04-1ubuntu26.1; from 18.04 LTS before 2.02-2ubuntu8.16; from 16.04 LTS before 2.02~beta2-36ubuntu3.26; from 14.04 ESM before 2.02~beta2-9ubuntu1.20
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Race Condition · Race Conditions
- Vendor
- Ubuntu
- Published
- July 2020
CoverageNo articles yet
No CyberSIXT article names CVE-2020-15707 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-362cwe.mitre.org
- Vendor advisorywiki.ubuntu.com
- Vendor advisoryubuntu.com
- Vendor advisorydebian.org
- Vendor advisoryaccess.redhat.com
- Vendor advisorysuse.com
- Vendor advisorysuse.com
- Vendor advisorydebian.org
- Vendor advisoryusn.ubuntu.com
- Vendor advisorylists.opensuse.org
- Vendor advisorylists.opensuse.org
- Vendor advisorysecurity.gentoo.org
- eclypsium.com/2020/07/29/theres-a-hole-in-the-booteclypsium.com
5 more references are in the CVE record.