CVE - CVE-2020-14310

CVE-ID
CVE-2020-14310	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310 URL:https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310 GENTOO:GLSA-202104-05 URL:https://security.gentoo.org/glsa/202104-05 SUSE:openSUSE-SU-2020:1168 URL:http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html SUSE:openSUSE-SU-2020:1169 URL:http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html UBUNTU:USN-4432-1 URL:https://usn.ubuntu.com/4432-1/
Assigning CNA
Red Hat, Inc.
Date Record Created
20200617	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20200617)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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