8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.3%
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.
Author | Note |
---|---|
eslerm | CWE-191 |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | grub2-signed | < 1.187.3~18.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | grub2-signed | < 1.187.3~20.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | grub2-signed | < 1.187.3~22.04.1 | UNKNOWN |
ubuntu | 14.04 | noarch | grub2-signed | < any | UNKNOWN |
ubuntu | 16.04 | noarch | grub2-signed | < any | UNKNOWN |
ubuntu | 18.04 | noarch | grub2-unsigned | < 2.06-2ubuntu14.1 | UNKNOWN |
ubuntu | 20.04 | noarch | grub2-unsigned | < 2.06-2ubuntu14.1 | UNKNOWN |
ubuntu | 22.04 | noarch | grub2-unsigned | < 2.06-2ubuntu14.1 | UNKNOWN |
ubuntu | 16.04 | noarch | grub2-unsigned | < any | UNKNOWN |
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
26.3%