CVE-2023-52633

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52633
In the Linux kernel, the following vulnerability has been resolved: um: time-travel: fix time corruption In 'basic' time-travel mode (without =inf-cpu or =ext), we still get timer interrupts. These can happen at arbitrary points in time, i.e. while in timer_read(), which pushes time forward just a little bit. Then, if we happen to get the interrupt after calculating the new time to push to, but before actually finishing that, the interrupt will set the time to a value that's incompatible with the forward, and we'll crash because time goes backwards when we do the forwarding. Fix this by reading the time_travel_time, calculating the adjustment, and doing the adjustment all with interrupts disabled.

5.0 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.3 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab Patch
https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 Patch
https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c Patch
https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 Patch
https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c Patch
https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab Patch
https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 Patch
https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c Patch
https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 Patch
https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

17 Mar 2025, 15:17

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab - () https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab - Patch
References () https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 - () https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 - Patch
References () https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c - () https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c - Patch
References () https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 - () https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 - Patch
References () https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c - () https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.0
CWE CWE-787
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux

21 Nov 2024, 08:40

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab - () https://git.kernel.org/stable/c/0c7478a2da3f5fe106b4658338873d50c86ac7ab -
References () https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 - () https://git.kernel.org/stable/c/4f7dad73df4cdb2b7042103d3922745d040ad025 -
References () https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c - () https://git.kernel.org/stable/c/abe4eaa8618bb36c2b33e9cdde0499296a23448c -
References () https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 - () https://git.kernel.org/stable/c/b427f55e9d4185f6f17cc1e3296eb8d0c4425283 -
References () https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c - () https://git.kernel.org/stable/c/de3e9d8e8d1ae0a4d301109d1ec140796901306c -

02 Apr 2024, 12:50

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: um: viaje en el tiempo: corrige la corrupción del tiempo En el modo de viaje en el tiempo 'básico' (sin =inf-cpu o =ext), todavía obtenemos interrupciones del temporizador. Esto puede suceder en momentos arbitrarios en el tiempo, es decir, mientras está en timer_read(), lo que adelanta un poco el tiempo. Luego, si recibimos la interrupción después de calcular el nuevo tiempo al que enviar, pero antes de finalizarlo, la interrupción establecerá el tiempo en un valor que es incompatible con el avance, y fallaremos porque el tiempo retrocede cuando hacer el reenvío. Solucione este problema leyendo time_travel_time, calculando el ajuste y realizando el ajuste, todo con las interrupciones desactivadas.

02 Apr 2024, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-04-02 07:15

Updated : 2025-03-17 15:17

NVD link : CVE-2023-52633

Mitre link : CVE-2023-52633

CVE.ORG link : CVE-2023-52633

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-787

Out-of-bounds Write