National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2017-15129 Detail

Current Description

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.

Source:  MITRE
Description Last Modified:  01/09/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 4.9 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0 Patch Vendor Advisory
http://seclists.org/oss-sec/2018/q1/7 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/102485
https://access.redhat.com/errata/RHSA-2018:0654
https://access.redhat.com/errata/RHSA-2018:0676
https://access.redhat.com/errata/RHSA-2018:1062
https://access.redhat.com/security/cve/CVE-2017-15129 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1531174 Issue Tracking Third Party Advisory
https://github.com/torvalds/linux/commit/21b5944350052d2583e82dd59b19a9ba94a007f0 Patch Third Party Advisory
https://marc.info/?l=linux-netdev&m=151370451121029&w=2 Mailing List Patch Third Party Advisory
https://marc.info/?t=151370468900001&r=1&w=2 Mailing List Third Party Advisory
https://usn.ubuntu.com/3617-1/
https://usn.ubuntu.com/3617-2/
https://usn.ubuntu.com/3617-3/
https://usn.ubuntu.com/3619-1/
https://usn.ubuntu.com/3619-2/
https://usn.ubuntu.com/3632-1/
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 Vendor Advisory

Technical Details

Vulnerability Type (View All)

Change History

9 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-15129
NVD Published Date:
01/09/2018
NVD Last Modified:
05/03/2018