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Description
Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow. The impact is: Code execution in the context of TEE core (kernel). The component is: optee_os. The fixed version is: 3.4.0 and later.
Basic information
Type
unreviewed
Severity
critical Advisory on GitHub
Open advisory ↗ Repository advisory
—
Source code
Not specified Published (advisory)
2022-05-24 16:50:17 UTC
Updated
2026-06-05 21:31:49 UTC
NVD published
2019-07-15 18:15:00 UTC
EPSS Score
Score
Percentile
5.46%
89.75%
CVSS Scores
Base score
Version
Severity
Vector
9.8
3.0
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CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
CWEs
CWE id
Name
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-190
Integer Overflow or Wraparound
cvelogic
Threat Intelligence