CVE-2022-28734 Information

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.

Reference

https://www.openwall.com/lists/oss-security/2022/06/07/5 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28734