When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
References
Link | Resource |
---|---|
https://access.redhat.com/security/cve/cve-2022-3775 | Third Party Advisory |
https://security.gentoo.org/glsa/202311-14 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2022-12-19T00:00:00
Updated: 2023-11-25T12:06:19.532925
Reserved: 2022-10-31T00:00:00
Link: CVE-2022-3775
JSON object: View
NVD Information
Status : Modified
Published: 2022-12-19T20:15:11.427
Modified: 2023-11-25T12:15:07.270
Link: CVE-2022-3775
JSON object: View
Redhat Information
No data.
CWE