4.1
CVE-2020-25656
- EPSS 0.01%
- Published 02.12.2020 01:15:12
- Last modified 21.11.2024 05:18:22
- Source secalert@redhat.com
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A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.10
Linux ≫ Linux Kernel Version5.10 Updaterc1
Redhat ≫ Enterprise Linux Version7.0
Redhat ≫ Enterprise Linux Version8.0
Debian ≫ Debian Linux Version9.0
Starwindsoftware ≫ Starwind Virtual San Versionv8 Updatebuild12533 SwPlatformvsphere
Starwindsoftware ≫ Starwind Virtual San Versionv8 Updatebuild12658 SwPlatformvsphere
Starwindsoftware ≫ Starwind Virtual San Versionv8 Updatebuild12859 SwPlatformvsphere
Starwindsoftware ≫ Starwind Virtual San Versionv8 Updatebuild13170 SwPlatformvsphere
Starwindsoftware ≫ Starwind Virtual San Versionv8 Updatebuild13586 SwPlatformvsphere
Starwindsoftware ≫ Starwind Virtual San Versionv8 Updatebuild13861 SwPlatformvsphere
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.01% | 0.008 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 4.1 | 0.5 | 3.6 |
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
|
| nvd@nist.gov | 1.9 | 3.4 | 2.9 |
AV:L/AC:M/Au:N/C:P/I:N/A:N
|
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.