CVE-2020-15107
| 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.
|
| Publication Date |
July 16, 2020, 7:15 a.m. |
| Registration Date |
Jan. 26, 2021, 11:53 a.m. |
| Last Update |
Nov. 21, 2024, 2:04 p.m. |
|
CVSS3.1 : MEDIUM
|
| スコア |
5.3
|
| Vector |
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N |
| 攻撃元区分(AV) |
ローカル |
| 攻撃条件の複雑さ(AC) |
高 |
| 攻撃に必要な特権レベル(PR) |
低 |
| 利用者の関与(UI) |
要 |
| 影響の想定範囲(S) |
変更あり |
| 機密性への影響(C) |
なし |
| 完全性への影響(I) |
高 |
| 可用性への影響(A) |
なし |
|
CVSS2.0 : LOW
|
| Score |
1.2
|
| Vector |
AV:L/AC:H/Au:N/C:N/I:P/A:N |
| 攻撃元区分(AV) |
ローカル |
| 攻撃条件の複雑さ(AC) |
高 |
| 攻撃前の認証要否(Au) |
不要 |
| 機密性への影響(C) |
なし |
| 完全性への影響(I) |
低 |
| 可用性への影響(A) |
なし |
| Get all privileges. |
いいえ
|
| Get user privileges |
いいえ
|
| Get other privileges |
いいえ
|
| User operation required |
はい
|
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:openenclave:openenclave:*:*:*:*:*:*:*:* |
|
|
|
0.10.0 |
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
openenclave における脆弱性
| Title |
openenclave における脆弱性
|
| Summary |
openenclave には、不特定の脆弱性が存在します。
|
| Possible impacts |
情報を改ざんされる可能性があります。 |
| Solution |
ベンダ情報および参考情報を参照して適切な対策を実施してください。 |
| Publication Date |
July 14, 2020, midnight |
| Registration Date |
Sept. 16, 2020, 2:39 p.m. |
| Last Update |
Sept. 16, 2020, 2:39 p.m. |
Affected System
| Open Enclave |
|
openenclave 0.10.0 未満
|
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2020年09月16日]
掲載 |
Sept. 16, 2020, 2:39 p.m. |