7.8

CVE-2019-19448

Exploit
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.31 < 4.4.233
Linux ≫ Linux Kernel Version >= 4.5.0 < 4.9.233
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.194
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.141
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.60
Linux ≫ Linux Kernel Version >= 5.5.0 < 5.7.17
Linux ≫ Linux Kernel Version >= 5.8 < 5.8.3
Debian ≫ Debian Linux Version 9.0
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Netapp ≫ Active Iq Unified Manager Version - SwPlatform vmware_vsphere
Netapp ≫ Cloud Backup Version -
Netapp ≫ Hci Management Node Version -
Netapp ≫ Solidfire Version -
Netapp ≫ A700s Firmware Version -
   Netapp ≫ A700s Version -
Netapp ≫ Fas 8300 Firmware Version -
   Netapp ≫ Fas 8300 Version -
Netapp ≫ Fas 8700 Firmware Version -
   Netapp ≫ Fas 8700 Version -
Netapp ≫ Fas A400 Firmware Version -
   Netapp ≫ Fas A400 Version -
Netapp ≫ Aff 8300 Firmware Version -
   Netapp ≫ Aff 8300 Version -
Netapp ≫ Aff 8700 Firmware Version -
   Netapp ≫ Aff 8700 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 2.14% 0.798
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:N/UI:R/S:U/C:H/I:H/A:H
NIST 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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://usn.ubuntu.com/4578-1/
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
Third Party Advisory
Mailing List
https://security.netapp.com/advisory/ntap-20200103-0001/
Third Party Advisory
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448
Third Party Advisory
Exploit