CVE-2017-15129

medium
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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.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=21b5944350052d2583e82dd59b19a9ba94a007f0

http://seclists.org/oss-sec/2018/q1/7

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/errata/RHSA-2019:1946

https://access.redhat.com/security/cve/CVE-2017-15129

https://bugzilla.redhat.com/show_bug.cgi?id=1531174

https://github.com/torvalds/linux/commit/21b5944350052d2583e82dd59b19a9ba94a007f0

https://marc.info/?l=linux-netdev&m=151370451121029&w=2

https://marc.info/?t=151370468900001&r=1&w=2

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

Details

Source: MITRE

Published: 2018-01-09

Updated: 2018-05-04

Type: CWE-416

Risk Information

CVSS v2

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tenable Plugins

View all (24 total)

IDNameProductFamilySeverity
127633RHEL 7 : kernel (RHSA-2019:1946)NessusRed Hat Local Security Checks
high
127281NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0074)NessusNewStart CGSL Local Security Checks
critical
127272NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0070)NessusNewStart CGSL Local Security Checks
critical
124991EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1538)NessusHuawei Local Security Checks
critical
124822EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1499)NessusHuawei Local Security Checks
medium
117543EulerOS Virtualization 2.5.0 : kernel (EulerOS-SA-2018-1234)NessusHuawei Local Security Checks
critical
109828Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4108)NessusOracle Linux Local Security Checks
high
109449Scientific Linux Security Update : kernel on SL7.x x86_64 (20180410) (Meltdown)NessusScientific Linux Local Security Checks
critical
109380CentOS 7 : kernel (CESA-2018:1062)NessusCentOS Local Security Checks
critical
109316Ubuntu 16.04 LTS : Linux kernel (Azure) vulnerabilities (USN-3632-1)NessusUbuntu Local Security Checks
high
109113Oracle Linux 7 : kernel (ELSA-2018-1062)NessusOracle Linux Local Security Checks
critical
108997RHEL 7 : kernel (RHSA-2018:1062)NessusRed Hat Local Security Checks
critical
108984RHEL 7 : kernel-rt (RHSA-2018:0676)NessusRed Hat Local Security Checks
critical
108942RHEL 7 : kernel-alt (RHSA-2018:0654)NessusRed Hat Local Security Checks
high
108878Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3619-2)NessusUbuntu Local Security Checks
high
108842Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3619-1)NessusUbuntu Local Security Checks
high
108840Ubuntu 17.10 : linux-raspi2 vulnerabilities (USN-3617-3)NessusUbuntu Local Security Checks
high
108835Ubuntu 16.04 LTS : linux-hwe, linux-gcp, linux-oem vulnerabilities (USN-3617-2)NessusUbuntu Local Security Checks
high
108834Ubuntu 17.10 : linux vulnerabilities (USN-3617-1)NessusUbuntu Local Security Checks
high
108459EulerOS 2.0 SP2 : kernel (EulerOS-SA-2018-1055)NessusHuawei Local Security Checks
medium
106748SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0416-1) (Spectre)NessusSuSE Local Security Checks
critical
106740openSUSE Security Update : the Linux Kernel (openSUSE-2018-153) (Spectre)NessusSuSE Local Security Checks
critical
106672SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0383-1) (Spectre)NessusSuSE Local Security Checks
critical
106052Virtuozzo 7 : readykernel-patch (VZA-2018-004)NessusVirtuozzo Local Security Checks
critical