CVE-2017-15129

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.

Published: 2018-01-09 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-15129 is rated Low Risk (28.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.36%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-15129

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.07% 0.36% +0.29%
2 2025-03-30 0.18% 0.07% -0.12%
3 2025-03-29 — 0.18% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-15129

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.0 3.6 [email protected]
4.9 2.0 MEDIUM
AV:L/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 6.9 [email protected]

Weakness enumeration for CVE-2017-15129

OS Trackers for CVE-2017-15129

vendor priority summary link
debian not yet assigned CVE-2017-15129 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-15129
redhat medium — https://access.redhat.com/security/cve/CVE-2017-15129
suse medium CVE-2017-15129 severity moderate: SUSE including 143 source package names (cluster-md-kmp-default-4.12.14-120.1, cluster-md-kmp-default-4.4.114-92.64.1, …), 281 product×package rows across 59 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Desktop 12 SP2, … (59 product lines)): Fixed 191, Known Not Affected 90. https://www.suse.com/security/cve/CVE-2017-15129/
ubuntu medium CVE-2017-15129 medium priority: Ubuntu including 79 source packages (linux, linux-aws, …), 654 status rows across 11 suites (artful, bionic, cosmic, focal, jammy, noble, oracular, trusty, upstream, xenial, zesty): DNE 425, not-affected 121, released 95, ignored 13. https://ubuntu.com/security/CVE-2017-15129

Affected software / configurations for CVE-2017-15129

Vendor Product Version Raw CPE
linux linux_kernel >= 4.0, < 4.14.11 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 4.15 cpe:2.3:o:linux:linux_kernel:4.15:rc1:*:*:*:*:*:*
linux linux_kernel 4.15 cpe:2.3:o:linux:linux_kernel:4.15:rc2:*:*:*:*:*:*
linux linux_kernel 4.15 cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:*
linux linux_kernel 4.15 cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:*
fedoraproject fedora 27 cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 17.10 cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
redhat enterprise_linux 7.0 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_compute_node_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_eus 7.6 cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_eus 7.7 cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 7.0 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_big_endian 7.0 cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_big_endian_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_for_real_time 7.0 cpe:2.3:o:redhat:enterprise_linux_for_real_time:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_real_time_for_nfv 7 cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:7:*:*:*:*:*:*:*
redhat enterprise_linux_for_scientific_computing 7.0 cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_server_update_services_for_sap_solutions 7.4 cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*

References for CVE-2017-15129

URL Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0 Patch
http://seclists.org/oss-sec/2018/q1/7 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/102485 Broken Link
https://access.redhat.com/errata/RHSA-2018:0654 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0676 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1062 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1946 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2017-15129 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1531174 Issue Tracking Patch Third Party Advisory
https://github.com/torvalds/linux/commit/21b5944350052d2583e82dd59b19a9ba94a007f0 Patch
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/ Third Party Advisory
https://usn.ubuntu.com/3617-2/ Third Party Advisory
https://usn.ubuntu.com/3617-3/ Third Party Advisory
https://usn.ubuntu.com/3619-1/ Third Party Advisory
https://usn.ubuntu.com/3619-2/ Third Party Advisory
https://usn.ubuntu.com/3632-1/ Third Party Advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 Release Notes
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