// For flags

CVE-2023-52846

hsr: Prevent use after free in prp_create_tagged_frame()

Severity Score

7.0
*CVSS v3

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: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail. In that situation, it frees the
skb and returns NULL. Meanwhile on the success path, it returns the
original skb. So it's straight forward to fix bug by using the returned
value.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: hsr: impedir el uso después de liberar en prp_create_tagged_frame(). La función prp_fill_rct() puede fallar. En esa situación, libera el skb y devuelve NULL. Mientras tanto, en el camino hacia el éxito, devuelve el skb original. Por lo tanto, es sencillo corregir el error utilizando el valor devuelto.

In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail. In that situation, it frees the skb and returns NULL. Meanwhile on the success path, it returns the original skb. So it's straight forward to fix bug by using the returned value.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-21 CVE Reserved
  • 2024-05-21 CVE Published
  • 2024-12-19 CVE Updated
  • 2025-03-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
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"
 >= 5.9 < 5.10.201
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.10.201"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 5.15.139
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.15.139"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.1.63
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.1.63"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.5.12
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.5.12"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.6.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.6.2"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.7
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.7"
en
Affected