CVE-2022-28734

Updated: 2023-08-25 20:01:59.124062

Description:

Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data buffer point by one position. This can lead to a out-of-bound write further when parsing the HTTP request, writing a NULL byte past the buffer. It's conceivable that an attacker controlled set of packets can lead to corruption of the GRUB2's internal memory metadata.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x CRITICAL 9.8

Status

OS name Project name Version Score Severity Status Errata Last updated
CentOS 7 ELS grub2 2.02 9.8 CRITICAL Already Fixed 2023-09-20 09:33:22
CentOS 8.4 ELS grub2 2.02 9.8 CRITICAL Released CLSA-2022:1669388927 2022-11-25 10:21:54
CentOS 8.5 ELS grub2 2.02 9.8 CRITICAL Released CLSA-2022:1669390018 2022-11-25 13:21:57