CVE-2020-14310

CVE Details

Release Date:2020-07-31

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.

See more information about CVE-2020-14310 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 6 Base Metrics: AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Access Vector: Local network Attack Complexity: Low
Privileges Required: High User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: High Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (grub2)ELSA-2020-57822020-07-29
Oracle Linux version 7 (grub2)ELSA-2020-57902020-07-29
Oracle Linux version 8 (grub2)ELSA-2020-57862020-07-29



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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