7.1

CVE-2021-3739

Exploit
A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.144
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.62
Linux ≫ Linux Kernel Version >= 5.11 < 5.13.14
Linux ≫ Linux Kernel Version >= 5.14 < 5.14.1
Fedoraproject ≫ Fedora Version 34
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
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.62% 0.454
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
NIST 3.6 3.9 4.9
AV:L/AC:L/Au:N/C:P/I:N/A:P
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://bugzilla.redhat.com/show_bug.cgi?id=1997958
Patch
Third Party Advisory
Issue Tracking
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091
Patch
Vendor Advisory
Mailing List
https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091
Patch
Third Party Advisory
Exploit
https://security.netapp.com/advisory/ntap-20220407-0006/
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/08/25/3
Patch
Third Party Advisory
Mailing List
https://ubuntu.com/security/CVE-2021-3739
Third Party Advisory