5.5 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:H
6 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.2%
All versions of HoRNDIS are affected by an integer overflow in the RNDIS packet parsing routines. A malicious USB device can trigger disclosure of unrelated kernel memory to userspace applications on the host, or can cause the kernel to crash. Kernel memory disclosure is especially likely on 32-bit kernels; 64-bit kernels are more likely to crash on attempted exploitation. It is not believed that kernel memory corruption is possible, or that unattended kernel memory disclosure without the collaboration of a userspace program running on the host is possible. The vulnerability is in HoRNDIS::receivePacket
. msg_len
, data_ofs
, and data_len
can be controlled by an attached USB device, and a negative value of data_ofs
can bypass the check for (data_ofs + data_len + 8) > msg_len
, and subsequently can cause a wild pointer copy in the mbuf_copyback
call. The software is not maintained and no patches are planned. Users of multi-tenant systems with HoRNDIS installed should only connect trusted USB devices to their system.
[
{
"product": "HoRNDIS",
"vendor": "jwise",
"versions": [
{
"status": "affected",
"version": "<= 9.2"
}
]
}
]
5.5 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:H
6 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.2%