CVE-2017-3226
Published: 24 July 2018
Das U-Boot is a device bootloader that can read its configuration from an AES encrypted file. Devices that make use of Das U-Boot's AES-CBC encryption feature using environment encryption (i.e., setting the configuration parameter CONFIG_ENV_AES=y) read environment variables from disk as the encrypted disk image is processed. An attacker with physical access to the device can manipulate the encrypted environment data to include a crafted two-byte sequence which triggers an error in environment variable parsing. This error condition is improperly handled by Das U-Boot, resulting in an immediate process termination with a debugging message.
Priority
CVSS 3 base score: 6.4
Status
Package | Release | Status |
---|---|---|
u-boot Launchpad, Ubuntu, Debian |
artful |
Ignored
(reached end-of-life)
|
bionic |
Not vulnerable
|
|
cosmic |
Ignored
(reached end-of-life)
|
|
disco |
Ignored
(reached end-of-life)
|
|
eoan |
Ignored
(reached end-of-life)
|
|
focal |
Not vulnerable
|
|
groovy |
Not vulnerable
|
|
hirsute |
Not vulnerable
|
|
impish |
Not vulnerable
|
|
jammy |
Not vulnerable
|
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was not-affected [code not present])
|
|
upstream |
Needs triage
|
|
xenial |
Needed
|
|
zesty |
Ignored
(reached end-of-life)
|
|
Patches: upstream: https://github.com/u-boot/u-boot/commit/c6831c74a9e9dbedc351de94d23d35188ae1a39b |
Notes
Author | Note |
---|---|
mdeslaur | xenial doesn't build with ENV_AES, and later releases removed the code completely |