Not rated
CVE-2020-25647 A flaw was found in grub2 in versions prior to 2.06
Description
A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| grub2 | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- FEDORA-2021-cab258a413 lists.fedoraproject.org
- GLSA-202104-05 security.gentoo.org
- security.netapp.com security.netapp.com
Timeline
- Published
- Last modified
Other CVEs of grub2
The 14 CVEs of grub2 →
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CVE-2021-3697
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CVE-2021-3696
A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader
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