// For flags

CVE-2021-47605

vduse: fix memory corruption in vduse_dev_ioctl()

Severity Score

7.8
*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: vduse: fix memory corruption in vduse_dev_ioctl() The "config.offset" comes from the user. There needs to a check to
prevent it being out of bounds. The "config.offset" and
"dev->config_size" variables are both type u32. So if the offset if
out of bounds then the "dev->config_size - config.offset" subtraction
results in a very high u32 value. The out of bounds offset can result
in memory corruption.

En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: vduse: corrige corrupción de memoria en vduse_dev_ioctl() El "config.offset" proviene del usuario. Es necesario realizar un control para evitar que esté fuera de los límites. Las variables "config.offset" y "dev->config_size" son ambas del tipo u32. Entonces, si el desplazamiento está fuera de los límites, entonces la resta "dev->config_size - config.offset" da como resultado un valor u32 muy alto. El desplazamiento fuera de los límites puede provocar daños en la memoria.

In the Linux kernel, the following vulnerability has been resolved: vduse: fix memory corruption in vduse_dev_ioctl() The "config.offset" comes from the user. There needs to a check to prevent it being out of bounds. The "config.offset" and "dev->config_size" variables are both type u32. So if the offset if out of bounds then the "dev->config_size - config.offset" subtraction results in a very high u32 value. The out of bounds offset can result in memory corruption.

The SUSE Linux Enterprise 15 SP5 Azure kernel was updated to receive various security bug fixes.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
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
  • 2024-05-24 CVE Reserved
  • 2024-06-19 CVE Published
  • 2025-04-15 EPSS Updated
  • 2025-05-04 CVE 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"
 >= 5.15 < 5.15.11
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15 < 5.15.11"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.15 < 5.16
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15 < 5.16"
en
Affected