Overview
- Description
- The AES implementation in the Texas Instruments OMAP L138 (secure variants), present in mask ROM, suffers from a timing side channel which can be exploited by an adversary with non-secure supervisor privileges by managing cache contents and collecting timing information for different ciphertext inputs. Using this side channel, the SK_LOAD secure kernel routine can be used to recover the Customer Encryption Key (CEK).
- Source
- cert@ncsc.nl
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 4.1
- Impact score
- 3.6
- Exploitability score
- 0.5
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
- Severity
- MEDIUM
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:ti:omap_l138_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E099834F-A5EF-4E60-A351-43FEF06E3C07"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:ti:omap_l138:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3D453CDD-014F-47EC-B6FD-9CE790450230"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
]