CVE-2007-3732

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Linux 2.6 before 2.6.23, the TRACE_IRQS_ON function in iret_exc calls a C function without ensuring that the segments are set properly. The kernel's %fs needs to be restored before the call in TRACE_IRQS_ON and before enabling interrupts, so that "current" references work. Without this, "current" used in the window between iret_exc and the middle of error_code where %fs is reset, would crash.

En Linux versiones 2.6 anteriores a 2.6.23, la función TRACE_IRQS_ON en iret_exc llama a una función C sin asegurar de que los segmentos estén configurados apropiadamente. El %fs del kernel debe ser restaurado antes de la llamada en TRACE_IRQS_ON y antes de habilitar las interrupciones, para que operen las referencias "current". Sin esto, "current" usado en la ventana entre iret_exc y la mitad de error_code donde %fs se restablece, se bloquearía.

*Credits: N/A

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

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2007-07-12 CVE Reserved
2019-11-07 CVE Published
2023-03-08 EPSS Updated
2024-08-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (3)

URL	Tag	Source
https://access.redhat.com/security/cve/cve-2007-3732	Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2007-3732	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2007-3732	2019-11-12

URL	Date	SRC

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"				>= 2.6.0 < 2.6.23 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.0 < 2.6.23"		-		Affected