7.8

CVE-2020-25669

Exploit
A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.4.245
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.245
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.208
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.159
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.79
Linux ≫ Linux Kernel Version >= 5.5 < 5.9.10
Debian ≫ Debian Linux Version 9.0
Netapp ≫ Cloud Backup Version -
Netapp ≫ H300s Firmware Version -
   Netapp ≫ H300s Version -
Netapp ≫ H500s Firmware Version -
   Netapp ≫ H500s Version -
Netapp ≫ H700s Firmware Version -
   Netapp ≫ H700s Version -
Netapp ≫ H300e Firmware Version -
   Netapp ≫ H300e Version -
Netapp ≫ H500e Firmware Version -
   Netapp ≫ H500e Version -
Netapp ≫ H700e Firmware Version -
   Netapp ≫ H700e Version -
Netapp ≫ H410s Firmware Version -
   Netapp ≫ H410s Version -
Netapp ≫ H410c Firmware Version -
   Netapp ≫ H410c Version -
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.63% 0.452
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NIST 7.2 3.9 10
AV:L/AC:L/Au:N/C:C/I:C/A:C
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2020/11/05/2
Third Party Advisory
Exploit
Mailing List
http://www.openwall.com/lists/oss-security/2020/11/20/5
Third Party Advisory
Exploit
Mailing List
https://github.com/torvalds/linux/commit/77e70d351db7de07a46ac49b87a6c3c7a60fca7e
Patch
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210702-0006/
Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/11/05/2%2C
https://www.openwall.com/lists/oss-security/2020/11/20/5%2C