// For flags

CVE-2024-26855

net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink()

Severity Score

4.4
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved:

net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink()

The function ice_bridge_setlink() may encounter a NULL pointer dereference
if nlmsg_find_attr() returns NULL and br_spec is dereferenced subsequently
in nla_for_each_nested(). To address this issue, add a check to ensure that
br_spec is not NULL before proceeding with the nested attribute iteration.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: ice: corrige una posible desreferencia de puntero NULL en ice_bridge_setlink() La función ice_bridge_setlink() puede encontrar una desreferencia de puntero NULL si nlmsg_find_attr() devuelve NULL y br_spec se desreferencia posteriormente en nla_for_each_nested( ). Para solucionar este problema, agregue una verificación para garantizar que br_spec no sea NULL antes de continuar con la iteración del atributo anidado.

A vulnerability was found in the ice_bridge_setlink() function in the Linux kernel. A missing check to verify whether the nlmsg_find_attr() function returns NULL or not could lead to a NULL pointer dereference, system instability, or crashes.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-19 CVE Reserved
  • 2024-04-17 CVE Published
  • 2024-04-18 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-690: Unchecked Return Value to NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 5.4.272
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.272"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 5.10.213
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.10.213"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 5.15.152
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.15.152"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 6.1.82
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.1.82"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 6.6.22
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.6.22"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 6.7.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.7.10"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.20 < 6.8
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 6.8"
en
Affected