Linux Kernel up to 2.5 iret_exc denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel up to 2.5. Affected is the function iret_exc. This manipulation causes denial of service. This vulnerability is tracked as CVE-2007-3732. The attack is restricted to local execution. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 2.5 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function iret_exc. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was disclosed 11/07/2019. This vulnerability is known as CVE-2007-3732 since 07/12/2007. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

Upgrading to version 2.6 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 2.6

Timelineinfo

07/12/2007 🔍
11/07/2019 +4501 days 🔍
11/08/2019 +1 days 🔍
02/05/2024 +1550 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: access.redhat.com
Status: Not defined

CVE: CVE-2007-3732 (🔍)
GCVE (CVE): GCVE-0-2007-3732
GCVE (VulDB): GCVE-100-145177

Entryinfo

Created: 11/08/2019 06:48
Updated: 02/05/2024 12:50
Changes: 11/08/2019 06:48 (38), 11/08/2019 06:53 (18), 02/05/2024 12:50 (4)
Complete: 🔍
Cache ID: 216:D66:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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