Linux Kernel on x86-64bit TLS Descriptor switch_to information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.18

Summaryinfo

A vulnerability has been found in Linux Kernel on x86-64bit and classified as problematic. Affected is the function switch_to of the component TLS Descriptor Handler. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2014-9419. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel on x86-64bit (Operating System) (the affected version unknown). This affects the function switch_to of the component TLS Descriptor Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality.

The weakness was presented 12/18/2014 by Andy Lutomirski as confirmed mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2014-9419 since 12/25/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 84091 (CentOS 6 : kernel (CESA-2015:1081)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155229 (Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2015-3041)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (99370), Tenable (84091) and SecurityFocus (BID 71794†). See VDB-68462 and VDB-73384 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84091
Nessus Name: CentOS 6 : kernel (CESA-2015:1081)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800909
OpenVAS Name: Fedora Update for kernel FEDORA-2015-5024
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: f647d7c155f069c1a068030255c300663516420e

Timelineinfo

12/08/2014 🔍
12/18/2014 +10 days 🔍
12/25/2014 +7 days 🔍
12/25/2014 +0 days 🔍
12/27/2014 +2 days 🔍
03/01/2022 +2621 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2015:1081
Researcher: Andy Lutomirski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-9419 (🔍)
GCVE (CVE): GCVE-0-2014-9419
GCVE (VulDB): GCVE-100-68463

OVAL: 🔍

X-Force: 99370 - Linux Kernel userspace information disclosure, Medium Risk
SecurityFocus: 71794 - Linux Kernel CVE-2014-9419 Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 12/27/2014 18:54
Updated: 03/01/2022 14:58
Changes: 12/27/2014 18:54 (51), 07/08/2017 14:16 (22), 03/01/2022 14:55 (5), 03/01/2022 14:57 (1), 03/01/2022 14:58 (2)
Complete: 🔍
Cache ID: 216:163:103

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