CVE-2022-28733

high

Description

Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.

References

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28733

https://security.netapp.com/advisory/ntap-20230825-0002/

https://www.openwall.com/lists/oss-security/2022/06/07/5

Details

Source: Mitre, NVD

Published: 2023-07-20

CVSS v3

Base Score: 8.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High