ID
VAR-202010-0715
CVE
CVE-2020-1683
TITLE
Juniper Networks Junos OS Vulnerabilities in lack of free memory after expiration
Trust: 0.8
DESCRIPTION
On Juniper Networks Junos OS devices, a specific SNMP OID poll causes a memory leak which over time leads to a kernel crash (vmcore). Prior to the kernel crash other processes might be impacted, such as failure to establish SSH connection to the device. The administrator can monitor the output of the following command to check if there is memory leak caused by this issue: user@device> show system virtual-memory | match "pfe_ipc|kmem" pfe_ipc 147 5K - 164352 16,32,64,8192 <-- increasing vm.kmem_map_free: 127246336 <-- decreasing pfe_ipc 0 0K - 18598 32,8192 vm.kmem_map_free: 134582272 This issue affects Juniper Networks Junos OS: 17.4R3; 18.1 version 18.1R3-S5 and later versions prior to 18.1R3-S10; 18.2 version 18.2R3 and later versions prior to 18.2R3-S3; 18.2X75 version 18.2X75-D420, 18.2X75-D50 and later versions prior to 18.2X75-D430, 18.2X75-D53, 18.2X75-D60; 18.3 version 18.3R3 and later versions prior to 18.3R3-S2; 18.4 version 18.4R1-S4, 18.4R2 and later versions prior to 18.4R2-S5, 18.4R3-S1; 19.1 version 19.1R2 and later versions prior to 19.1R2-S2, 19.1R3; 19.2 version 19.2R1 and later versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2. This issue does not affect Juniper Networks Junos OS prior to 17.4R3. The operating system provides a secure programming interface and Junos SDK. A security vulnerability exists in Junos OS that could allow an attacker to trigger a denial of service by triggering a fatal error on an SNMP poll
Trust: 1.8
AFFECTED PRODUCTS
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.1 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 17.4 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.2 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.4 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.1 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.2x75 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.4 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.2 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.3 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.3 | Trust: 1.0 |
| vendor: | ジュニパーネットワークス | model: | junos os | scope: | eq | version: | - | Trust: 0.8 |
| vendor: | ジュニパーネットワークス | model: | junos os | scope: | - | version: | - | Trust: 0.8 |
CVSS
SEVERITY | CVSSV2 | CVSSV3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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PROBLEMTYPE DATA
| problemtype: | CWE-401 | Trust: 1.1 |
| problemtype: | Lack of free memory after expiration (CWE-401) [NVD Evaluation ] | Trust: 0.8 |
THREAT TYPE
remote
Trust: 0.6
TYPE
other
Trust: 0.6
PATCH
| title: | JSA11080 | url: | https://kb.juniper.net/JSA11080 | Trust: 0.8 |
| title: | Juniper Networks Junos OS Security vulnerabilities | url: | http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=130754 | Trust: 0.6 |
EXTERNAL IDS
| db: | NVD | id: | CVE-2020-1683 | Trust: 2.6 |
| db: | JUNIPER | id: | JSA11080 | Trust: 1.8 |
| db: | JVNDB | id: | JVNDB-2020-012135 | Trust: 0.8 |
| db: | CNNVD | id: | CNNVD-202010-684 | Trust: 0.7 |
| db: | AUSCERT | id: | ESB-2020.3736 | Trust: 0.6 |
| db: | VULHUB | id: | VHN-169947 | Trust: 0.1 |
| db: | VULMON | id: | CVE-2020-1683 | Trust: 0.1 |
REFERENCES
| url: | https://kb.juniper.net/jsa11080 | Trust: 1.8 |
| url: | https://nvd.nist.gov/vuln/detail/cve-2020-1683 | Trust: 1.4 |
| url: | https://vigilance.fr/vulnerability/junos-os-memory-leak-via-snmp-polling-33721 | Trust: 0.6 |
| url: | https://www.auscert.org.au/bulletins/esb-2020.3736/ | Trust: 0.6 |
| url: | https://vigilance.fr/vulnerability/junos-os-denial-of-service-via-snmp-polling-33597 | Trust: 0.6 |
| url: | https://cwe.mitre.org/data/definitions/401.html | Trust: 0.1 |
| url: | https://nvd.nist.gov | Trust: 0.1 |
| url: | https://exchange.xforce.ibmcloud.com/vulnerabilities/189909 | Trust: 0.1 |
SOURCES
| db: | VULHUB | id: | VHN-169947 |
| db: | VULMON | id: | CVE-2020-1683 |
| db: | JVNDB | id: | JVNDB-2020-012135 |
| db: | CNNVD | id: | CNNVD-202010-684 |
| db: | NVD | id: | CVE-2020-1683 |
LAST UPDATE DATE
2024-08-14T15:43:06.752000+00:00
SOURCES UPDATE DATE
| db: | VULHUB | id: | VHN-169947 | date: | 2020-10-28T00:00:00 |
| db: | VULMON | id: | CVE-2020-1683 | date: | 2020-10-28T00:00:00 |
| db: | JVNDB | id: | JVNDB-2020-012135 | date: | 2021-04-26T07:28:00 |
| db: | CNNVD | id: | CNNVD-202010-684 | date: | 2020-10-30T00:00:00 |
| db: | NVD | id: | CVE-2020-1683 | date: | 2020-10-28T17:05:07.863 |
SOURCES RELEASE DATE
| db: | VULHUB | id: | VHN-169947 | date: | 2020-10-16T00:00:00 |
| db: | VULMON | id: | CVE-2020-1683 | date: | 2020-10-16T00:00:00 |
| db: | JVNDB | id: | JVNDB-2020-012135 | date: | 2021-04-26T00:00:00 |
| db: | CNNVD | id: | CNNVD-202010-684 | date: | 2020-10-15T00:00:00 |
| db: | NVD | id: | CVE-2020-1683 | date: | 2020-10-16T21:15:14.007 |