CVE-2026-33317

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Source
https://cve.org/CVERecord?id=CVE-2026-33317
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33317.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33317
Aliases
  • GHSA-8cqw-mg7v-c9p9
Downstream
Published
2026-04-24T02:20:55.670Z
Modified
2026-07-08T08:11:17.999398007Z
Severity
  • 8.7 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L CVSS Calculator
Summary
OP-TEE: PKCS#11 TA out-of-bounds read and memory disclosure
Details

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. In versions 3.13.0 through 4.10.0, missing checks in entry_get_attribute_value() in ta/pkcs11/src/object.c can lead to out-of-bounds read from the PKCS#11 TA heap or a crash. When chained with the OOB read, the PKCS#11 TA function PKCS11_CMD_GET_ATTRIBUTE_VALUE or entry_get_attribute_value() can, with a bad template parameter, be tricked into reading at most 7 bytes beyond the end of the template buffer and writing beyond the end of the template buffer with the content of an attribute value of a PKCS#11 object. Commits e031c4e562023fd9f199e39fd2e85797e4cbdca9, 16926d5a46934c46e6656246b4fc18385a246900, and 149e8d7ecc4ef8bb00ab4a37fd2ccede6d79e1ca contain patches and are anticipated to be part of version 4.11.0.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33317.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125",
        "CWE-787"
    ]
}
References

Affected packages

Git / github.com/op-tee/optee_os

Affected ranges

Type
GIT
Repo
https://github.com/op-tee/optee_os
Events
Introduced
30c13f9e2ff178c9a299e409de75d50529cf5064
Last affected
753afbbee1682f5d16fd30e87b31058a4fd4f4b8
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "3.13.0"
        },
        {
            "last_affected": "4.10.0"
        }
    ]
}

Affected versions

3.*
3.13.0
3.14.0
3.14.0-rc1
3.15.0
3.15.0-rc1
3.16.0
3.17.0
3.17.0-rc1
3.18.0
3.18.0-rc1
3.19.0
3.19.0-rc1
3.20.0
3.20.0-rc1
3.21.0
3.21.0-rc1
3.22.0
3.22.0-rc1
4.*
4.0.0
4.0.0-rc1
4.1.0
4.1.0-rc1
4.10.0
4.10.0-rc1
4.2.0
4.2.0-rc1
4.3.0
4.3.0-rc1
4.4.0
4.4.0-rc1
4.5.0
4.5.0-rc1
4.6.0
4.6.0-rc1
4.7.0
4.7.0-rc1
4.8.0
4.8.0-rc1
4.9.0
4.9.0-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33317.json"