Linux Kernel 4.11.5 on AMD64 PIE Executable access control

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel 4.11.5 on AMD64. Affected is an unknown function of the component PIE Executable Handler. The manipulation results in access control. This vulnerability is cataloged as CVE-2017-1000379. The attack must be initiated from a local position. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel 4.11.5 on AMD64 (Operating System). Affected is an unknown functionality of the component PIE Executable Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The Linux Kernel running on AMD64 systems will sometimes map the contents of PIE executable, the heap or ld.so to where the stack is mapped allowing attackers to more easily manipulate the stack. Linux Kernel version 4.11.5 is affected.

The bug was discovered 06/19/2017. The weakness was shared 06/19/2017 with Qualys (Website). The advisory is shared for download at access.redhat.com. This vulnerability is traded as CVE-2017-1000379 since 06/13/2017. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 101068 (Fedora 24 : kernel (2017-05f10e29f4) (Stack Clash)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370435 (Linux kernel / glibc Elevation of Privileges (Stack Clash) (Deprecated)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42275), Tenable (101068) and SecurityFocus (BID 99284†). The entries VDB-102672 and VDB-102675 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 101068
Nessus Name: Fedora 24 : kernel (2017-05f10e29f4) (Stack Clash)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

06/13/2017 🔍
06/16/2017 +3 days 🔍
06/19/2017 +3 days 🔍
06/19/2017 +0 days 🔍
06/19/2017 +0 days 🔍
06/20/2017 +1 days 🔍
06/23/2017 +3 days 🔍
06/28/2017 +5 days 🔍
01/12/2025 +2755 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2017-05f10e29f4
Researcher: Qualys
Organization: Qualys
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-1000379 (🔍)
GCVE (CVE): GCVE-0-2017-1000379
GCVE (VulDB): GCVE-100-102684
SecurityFocus: 99284 - Linux Kernel CVE-2017-1000379 Local Security Bypass Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/20/2017 08:10
Updated: 01/12/2025 13:35
Changes: 06/20/2017 08:10 (74), 10/19/2019 09:30 (10), 12/29/2020 10:00 (2), 12/08/2022 15:53 (3), 12/08/2022 16:00 (1), 01/12/2025 13:35 (14)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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