CVE-2022-28733

HighCVSS 8.1/10Last modified Nov 10, 2026

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.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-191

Affected software

Vendor	Product	Versions
GNU Project	GNU GRUB	< 2.06-3

References

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28733Third Party Advisory
https://security.netapp.com/advisory/ntap-20230825-0002/
https://www.openwall.com/lists/oss-security/2022/06/07/5Mailing List, Third Party Advisory
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28733Third Party Advisory
https://security.netapp.com/advisory/ntap-20230825-0002/
https://www.openwall.com/lists/oss-security/2022/06/07/5Mailing List, Third Party Advisory

Timeline

Published: Jul 20, 2023
Last modified: Nov 10, 2026
NVD status: Modified

Related CVEs from 2022

CVE-2022-287347.0Out-of-bounds write when handling split HTTP headers; When handling split HTTP headers, GRUB2 HTTP code accidentally moves its internal data CVE-2022-287357.8The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded ma CVE-2022-287367.8There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that CVE-2022-287377.8There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes CVE-2022-287389.8A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim attempts to create a Regexp from CVE-2022-287397.5There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Floa CVE-2022-28745.5NULL Pointer Dereference in GitHub repository vim/vim prior to 9.0.0224.CVE-2022-287407.5aEnrich eHRD Learning Management Key Performance Indicator System 5+ exposes Sensitive Information to an Unauthorized Actor.CVE-2022-287418.1aEnrich a+HRD 5.x Learning Management Key Performance Indicator System has a local file inclusion (LFI) vulnerability that occurs due to mis CVE-2022-287427.5aEnrich eHRD Learning Management Key Performance Indicator System 5+ has Improper Access Control. The web application does not validate user CVE-2022-287436.6Time-of-check Time-of-use (TOCTOU) Race Condition vulerability in Foscam R2C IP camera running System FW <= 1.13.1.6, and Application FW <= CVE-2022-287479.8Key reuse in GoSecure Titan Inbox Detection & Response (IDR) through 2022-04-05 leads to remote code execution. To exploit this vulnerabilit