Vulnerability · Published Oct 19, 2023 · Assigned by NCSC-NL

CVE-2022-25332SK_LOAD timing side channel during AES module decryption in Texas Instruments OMAP L138

Medium 4.4

In plain English

A medium-severity security flaw in OMAP from Texas Instruments. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)4.4Medium

Exploit odds (30 days)0.1%top 99.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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).

Affected products (as reported)

Vendor	Product	Versions
Texas Instruments	OMAP	L138

Weakness: CWE-208 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:F/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:L/MAC:L/MPR:H/MUI:N/MS:U/MC:H/MI:N/MA:N

References

TETRA:BURST related