Vulnerability Details CVE-2022-28733
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 28.8%
CVSS Severity
CVSS v3 Score 8.1
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
- 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
Products affected by CVE-2022-28733
-
cpe:2.3:a:gnu:grub2:2.00
-
cpe:2.3:a:gnu:grub2:2.01
-
cpe:2.3:a:gnu:grub2:2.02
-
cpe:2.3:a:gnu:grub2:2.04
-
cpe:2.3:a:gnu:grub2:2.06