CVE-2019-18282
kernel: The flow_dissector feature allows device tracking
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.
La función flow_dissector en el kernel de Linux 4.3 a 5.x anterior a la versión 5.3.10 tiene una vulnerabilidad de seguimiento del dispositivo, también conocida como CID-55667441c84f. Esto ocurre porque la etiqueta de flujo automático de un paquete UDP IPv6 se basa en un valor hashrnd de 32 bits como secreto y porque se usa jhash (en lugar de siphash). El valor hashrnd permanece igual a partir del tiempo de arranque, y puede ser inferido por un atacante. Esto afecta a net / core / flow_dissector.c y al código relacionado.
A device tracking vulnerability was found in the flow_dissector feature in the Linux kernel. This flaw occurs because the auto flowlabel of the UDP IPv6 packet relies on a 32-bit hashmd value as a secret, and jhash (instead of siphash) is used. The hashmd value remains the same starting from boot time and can be inferred by an attacker.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-10-23 CVE Reserved
- 2020-01-16 CVE Published
- 2024-05-11 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-330: Use of Insufficiently Random Values
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20200204-0002 | Third Party Advisory |
|
| https://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2o | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2 | 2022-04-18 |
| URL | Date | SRC |
|---|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10 | 2022-04-18 | |
| https://access.redhat.com/security/cve/CVE-2019-18282 | 2020-12-15 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1796360 | 2020-12-15 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Netapp Search vendor "Netapp" | A700s Firmware Search vendor "Netapp" for product "A700s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | A700s Search vendor "Netapp" for product "A700s" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | 8300 Firmware Search vendor "Netapp" for product "8300 Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | 8300 Search vendor "Netapp" for product "8300" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | 8700 Firmware Search vendor "Netapp" for product "8700 Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | 8700 Search vendor "Netapp" for product "8700" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | A400 Firmware Search vendor "Netapp" for product "A400 Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | A400 Search vendor "Netapp" for product "A400" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | H610s Firmware Search vendor "Netapp" for product "H610s Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H610s Search vendor "Netapp" for product "H610s" | - | - |
Safe
|
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.3 <= 5.3.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.3 <= 5.3.10" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager" | - | vmware_vsphere |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Cloud Backup Search vendor "Netapp" for product "Cloud Backup" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Data Availability Services Search vendor "Netapp" for product "Data Availability Services" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | E-series Santricity Os Controller Search vendor "Netapp" for product "E-series Santricity Os Controller" | >= 11.0.0 <= 11.70.1 Search vendor "Netapp" for product "E-series Santricity Os Controller" and version " >= 11.0.0 <= 11.70.1" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Hci Management Node Search vendor "Netapp" for product "Hci Management Node" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Solidfire Search vendor "Netapp" for product "Solidfire" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Steelstore Cloud Integrated Storage Search vendor "Netapp" for product "Steelstore Cloud Integrated Storage" | - | - |
Affected
| ||||||