Linux Kernel up to 4.14.10 net/core/net_namespace.c get_net_ns_by_id use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Linux Kernel up to 4.14.10 (Operating System). It has been rated as critical. This issue affects the function get_net_ns_by_id of the file net/core/net_namespace.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The bug was discovered 12/20/2017. The weakness was published 01/09/2018 by Paul (Website). The advisory is shared at The identification of this vulnerability is CVE-2017-15129 since 10/08/2017. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 106052 (Virtuozzo 7 : readykernel-patch (VZA-2018-004)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Virtuozzo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236708 (Red Hat Update for kernel-alt (RHSA-2018:0654)).

Upgrading to version 4.14.11 eliminates this vulnerability. A possible mitigation has been published 3 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (106052). Similar entries are available at 104316, 107862, 108798 and 110307.







CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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NVD Base Score: 5.5
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Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 106052
Nessus Name: Virtuozzo 7 : readykernel-patch (VZA-2018-004)
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OpenVAS ID: 54529
OpenVAS Name: SuSE Update for Linux Kernel openSUSE-SU-2018:0408-1 (Linux Kernel)
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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: Kernel 4.14.11


10/08/2017 🔍
10/09/2017 +1 days 🔍
12/20/2017 +72 days 🔍
01/09/2018 +20 days 🔍
01/09/2018 +0 days 🔍
01/10/2018 +1 days 🔍
01/12/2018 +2 days 🔍
01/16/2018 +4 days 🔍
01/20/2023 +1830 days 🔍



Advisory: RHSA-2018:0654
Researcher: Michael Ellerman/Gustavo Romero/Breno Leitao/Paul Mackerras/Cyril Bur. (Paul)
Status: Confirmed

CVE: CVE-2017-15129 (🔍)
SecurityFocus: 101264 - Linux Kernel CVE-2017-1000255 Local Memory Corruption Vulnerability

See also: 🔍


Created: 01/10/2018 02:13 PM
Updated: 01/20/2023 01:23 PM
Changes: 01/10/2018 02:13 PM (79), 12/20/2019 07:18 PM (5), 01/29/2021 11:06 AM (2), 01/20/2023 01:23 PM (4)
Complete: 🔍


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