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.
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2022/06/07/5 | third party advisory mailing list |
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28734 | third party advisory issue tracking |
| https://security.netapp.com/advisory/ntap-20230825-0002/ | third party advisory |