There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2020-07-30T12:49:31

Updated: 2021-05-01T01:08:04

Reserved: 2020-06-17T00:00:00


Link: CVE-2020-14309

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2020-07-30T13:15:10.987

Modified: 2022-04-28T18:58:26.240


Link: CVE-2020-14309

JSON object: View

cve-icon Redhat Information

No data.