Linux における初期化に関する脆弱性
| Title |
Linux における初期化に関する脆弱性
|
| Summary |
Linux には、初期化に関する脆弱性が存在します。
|
| Possible impacts |
サービス運用妨害 (DoS) 状態に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 |
April 6, 2021, midnight |
| Registration Date |
Dec. 13, 2021, 6:08 p.m. |
| Last Update |
Dec. 13, 2021, 6:08 p.m. |
|
CVSS3.0 : 警告
|
| Score |
6.5
|
| Vector |
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
|
CVSS2.0 : 注意
|
| Score |
2.1
|
| Vector |
AV:L/AC:L/Au:N/C:N/I:N/A:P |
Affected System
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
その他
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2021年12月13日]
掲載 |
Dec. 13, 2021, 6:08 p.m. |
NVD Vulnerability Information
CVE-2021-28688
| Summary |
The fix for XSA-365 includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains. All Linux versions having the fix for XSA-365 applied are vulnerable. XSA-365 was classified to affect versions back to at least 3.11.
|
| Publication Date |
April 7, 2021, 4:15 a.m. |
| Registration Date |
April 7, 2021, 10:04 a.m. |
| Last Update |
Nov. 21, 2024, 3 p.m. |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
3.11 |
5.10.18 |
|
|
| Configuration2 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
|
|
|
|
Related information, measures and tools
Common Vulnerabilities List