CVE-2020-15107 json
x87 FPU operations in enclaves are vulnerable to ABI poisoning in openenclave
published 2020-07-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7220
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
In openenclave before 0.10.0, enclaves that use x87 FPU operations are vulnerable to tampering by a malicious host application. By violating the Linux System V Application Binary Interface (ABI) for such operations, a host app can compromise the execution integrity of some x87 FPU operations in an enclave. Depending on the FPU control configuration of the enclave app and whether the operations are used in secret-dependent execution paths, this vulnerability may also be used to mount a side-channel attack on the enclave. This has been fixed in 0.10.0 and the current master branch. Users will need to recompile their applications against the patched libraries to be protected from this vulnerability.
Patch / fix
- openenclave openenclave 0.10.0
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N |
| NVD | 2.0 | 1.2 | AV:L/AC:H/Au:N/C:N/I:P/A:N |
Affected products
- openenclave openenclave
References
-
github.com
/openenclave/openenclave/security/advisories/GHSA-7wjx-wcwg-w999
third-party-advisory
Sources
- CVE List CVE-2020-15107
- NVD CVE-2020-15107
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