7.1

CVE-2019-19813

Exploit
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in __mutex_lock in kernel/locking/mutex.c. This is related to mutex_can_spin_on_owner in kernel/locking/mutex.c, __btrfs_qgroup_free_meta in fs/btrfs/qgroup.c, and btrfs_insert_delayed_items in fs/btrfs/delayed-inode.c.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version 5.0.21
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Debian ≫ Debian Linux Version 9.0
Netapp ≫ Active Iq Unified Manager SwPlatform vmware_vsphere Version >= 9.5
Netapp ≫ Hci Management Node Version -
Netapp ≫ Solidfire Version -
Netapp ≫ Aff A700s Firmware Version -
   Netapp ≫ Aff A700s Version -
Netapp ≫ Fas8300 Firmware Version -
   Netapp ≫ Fas8300 Version -
Netapp ≫ Fas8700 Firmware Version -
   Netapp ≫ Fas8700 Version -
Netapp ≫ Aff A400 Firmware Version -
   Netapp ≫ Aff A400 Version -
Netapp ≫ H610s Firmware Version -
   Netapp ≫ H610s Version -
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.13% 0.796
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NIST 7.1 8.6 6.9
AV:N/AC:M/Au:N/C:N/I:N/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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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/2020/09/msg00025.html
Third Party Advisory
Mailing List
https://usn.ubuntu.com/4414-1/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
Third Party Advisory
Mailing List
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19813
Third Party Advisory
Exploit