CVE-2022-47630
Published: 16 January 2023
Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing boot certificates. This affects downstream use of get_ext and auth_nvctr. Attackers might be able to trigger dangerous read side effects or obtain sensitive information about microarchitectural state.
Notes
| Author | Note |
|---|---|
| rodrigo-zaiden | claimed to only affect custom usages of get_ext and auth_nvctr interfaces. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
arm-trusted-firmware Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needed
|
|
| jammy |
Needed
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Ignored
(end of life, was needed)
|
|
| mantic |
Needed
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support)
|
|
|
Patches: upstream: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=fd37982a19a4a2911912ce321b9468993a0919ad upstream: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=72460f50e2437a85ce5229c430931aab8f4a0d5b upstream: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=f5c51855d36e399e6e22cc1eb94f6b58e51b3b6d upstream: https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=abb8f936fd0ad085b1966bdc2cddf040ba3865e3 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.4 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H |