// For flags

CVE-2024-57893

ALSA: seq: oss: Fix races at processing SysEx messages

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix races at processing SysEx messages OSS sequencer handles the SysEx messages split in 6 bytes packets, and
ALSA sequencer OSS layer tries to combine those. It stores the data
in the internal buffer and this access is racy as of now, which may
lead to the out-of-bounds access. As a temporary band-aid fix, introduce a mutex for serializing the
process of the SysEx message packets.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: seq: oss: Se corrigen las ejecuciones al procesar mensajes SysEx El secuenciador OSS maneja los mensajes SysEx divididos en paquetes de 6 bytes y la capa OSS del secuenciador ALSA intenta combinarlos. Almacena los datos en el búfer interno y este acceso es acelerado a partir de ahora, lo que puede llevar al acceso fuera de los límites. Como solución temporal, introduzca un mutex para serializar el proceso de los paquetes de mensajes SysEx.

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: oss: Fix races at processing SysEx messages OSS sequencer handles the SysEx messages split in 6 bytes packets, and ALSA sequencer OSS layer tries to combine those. It stores the data in the internal buffer and this access is racy as of now, which may lead to the out-of-bounds access. As a temporary band-aid fix, introduce a mutex for serializing the process of the SysEx message packets.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2025-01-11 CVE Reserved
  • 2025-01-15 CVE Published
  • 2025-01-15 CVE Updated
  • 2025-01-16 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"
< 6.1.124
Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.124"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.6.70
Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.70"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.12.9
Search vendor "Linux" for product "Linux Kernel" and version " < 6.12.9"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
< 6.13-rc6
Search vendor "Linux" for product "Linux Kernel" and version " < 6.13-rc6"
en
Affected