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CVE-2018-0022— Junos OS: Mbuf leak due to processing MPLS packets in VPLS network.

Quick assessment

Affected
Juniper Networks Junos OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Juniper Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件系统的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Junos OS中存在安全漏洞。当设备配置有VPLS路由进程时，远程攻击者通过向目标设备的界面发送特制的MPLS数据包利用该漏洞造成拒绝服务（资源耗尽）。以下版本受到影响：Juniper Junos OS 12.1X46版本，12.3X48版本，14.1版本，14.1X53版本，14.2版本，15.1版本，15

AI Predicted 5.3 Difficulty: Easy EPSS 2.29% · P82
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I. Basic Information for CVE-2018-0022

Vulnerability Information
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Vulnerability Title
Junos OS: Mbuf leak due to processing MPLS packets in VPLS network.
Source: CVE Program / CVE List V5
Vulnerability Description
A Junos device with VPLS routing-instances configured on one or more interfaces may be susceptible to an mbuf leak when processing a specific MPLS packet. Approximately 1 mbuf is leaked per each packet processed. The number of mbufs is platform dependent. The following command provides the number of mbufs that are currently in use and maximum number of mbufs that can be allocated on a platform: > show system buffers 2437/3143/5580 mbufs in use (current/cache/total) Once the device runs out of mbufs it will become inaccessible and a restart will be required. This issue only affects end devices, transit devices are not affected. Affected releases are Juniper Networks Junos OS with VPLS configured running: 12.1X46 versions prior to 12.1X46-D76; 12.3X48 versions prior to 12.3X48-D66, 12.3X48-D70; 14.1 versions prior to 14.1R9; 14.1X53 versions prior to 14.1X53-D47; 14.2 versions prior to 14.2R8; 15.1 versions prior to 15.1F2-S19, 15.1F6-S10, 15.1R4-S9, 15.1R5-S7, 15.1R6-S4, 15.1R7; 15.1X49 versions prior to 15.1X49-D131, 15.1X49-D140; 15.1X53 versions prior to 15.1X53-D58 on EX2300/EX3400; 15.1X53 versions prior to 15.1X53-D233 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D471 on NFX; 15.1X53 versions prior to 15.1X53-D66 on QFX10; 16.1 versions prior to 16.1R3-S8, 16.1R4-S6, 16.1R5; 16.2 versions prior to 16.2R1-S6, 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R1-S7, 17.1R2-S6, 17.1R3; 17.2 versions prior to 17.2R1-S5, 17.2R2.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Junos OS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件系统的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Junos OS中存在安全漏洞。当设备配置有VPLS路由进程时，远程攻击者通过向目标设备的界面发送特制的MPLS数据包利用该漏洞造成拒绝服务（资源耗尽）。以下版本受到影响：Juniper Junos OS 12.1X46版本，12.3X48版本，14.1版本，14.1X53版本，14.2版本，15.1版本，15
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Juniper Networks Junos OS 12.1X46 ~ 12.1X46-D76 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D58 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D233 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D471 -
Juniper Networks Junos OS 15.1X53 ~ 15.1X53-D66 -

II. Public POCs for CVE-2018-0022

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III. Intelligence Information for CVE-2018-0022

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Vendor Advisories for CVE-2018-0022 (3)

Same Patch Batch · Juniper Networks · 2018-04-11 · 8 CVEs total

CVE-2018-0016 Junos OS: Kernel crash upon receipt of crafted CLNP datagrams
CVE-2018-0017 SRX Series: Denial of service vulnerability in flowd daemon on devices configured with NAT
CVE-2018-0018 SRX Series: A crafted packet may lead to information disclosure and firewall rule bypass d
CVE-2018-0019 Junos: Denial of service vulnerability in SNMP MIB-II subagent daemon (mib2d).
CVE-2018-0020 Junos OS: rpd daemon cores due to malformed BGP UPDATE packet
CVE-2018-0021 Junos OS: Short MacSec keys may allow man-in-the-middle attacks.
CVE-2018-0023 Junos Snapshot Administrator (JSNAPy) world writeable default configuration file permissio

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks

V. Comments for CVE-2018-0022

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