CVE-2022-2347
Published: 23 September 2022
There exists an unchecked length field in UBoot. The U-Boot DFU implementation does not bound the length field in USB DFU download setup packets, and it does not verify that the transfer direction corresponds to the specified command. Consequently, if a physical attacker crafts a USB DFU download setup packet with a `wLength` greater than 4096 bytes, they can write beyond the heap-allocated request buffer.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
u-boot Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
| jammy |
Released
(2022.01+dfsg-2ubuntu2.3)
|
|
| kinetic |
Released
(2022.07+dfsg-1ubuntu4.2)
|
|
| trusty |
Does not exist
|
|
| xenial |
Needs triage
|
|
| impish |
Ignored
(end of life)
|
|
| bionic |
Released
(2020.10+dfsg-1ubuntu0~18.04.3)
|
|
| focal |
Released
(2021.01+dfsg-3ubuntu0~20.04.5)
|
|
| lunar |
Released
(2022.07+dfsg-1ubuntu7)
|
|
| mantic |
Released
(2022.07+dfsg-1ubuntu7)
|
|
|
Patches: upstream: https://github.com/u-boot/u-boot/commit/fbce985e28eaca3af82afecc11961aadaf971a7e |
||
|
u-boot-nezha Launchpad, Ubuntu, Debian |
trusty |
Ignored
(end of standard support)
|
| xenial |
Ignored
(end of standard support)
|
|
| bionic |
Does not exist
|
|
| focal |
Does not exist
|
|
| jammy |
Released
(2022.04+git20220405.7446a472-0ubuntu0.4)
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Released
(2022.10-1089-g528ae9bc6c-0ubuntu1.23.04.2)
|
|
| mantic |
Needed
|
|
| upstream |
Needs triage
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack vector | Physical |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |