Vulnerability Database

346,508

Total vulnerabilities in the database

CVE-2017-2312 — juniper / junos

Missing Release of Resource after Effective Lifetime

On Juniper Networks devices running Junos OS affected versions and with LDP enabled, a specific LDP packet destined to the RE (Routing Engine) will consume a small amount of the memory allocated for the rpd (routing protocol daemon) process. Over time, repeatedly receiving this type of LDP packet(s) will cause the memory to exhaust and the rpd process to crash and restart. It is not possible to free up the memory that has been consumed without restarting the rpd process. This issue affects Junos OS based devices with either IPv4 or IPv6 LDP enabled via the [protocols ldp] configuration (the native IPv6 support for LDP is available in Junos OS 16.1 and higher). The interface on which the packet arrives needs to have LDP enabled. The affected Junos versions are: 13.3 prior to 13.3R10; 14.1 prior to 14.1R8; 14.2 prior to 14.2R7-S6 or 14.2R8; 15.1 prior to 15.1F2-S14, 15.1F6-S4, 15.1F7, 15.1R4-S7, 15.1R5; 15.1X49 before 15.1X49-D70; 15.1X53 before 15.1X53-D230, 15.1X53-D63, 15.1X53-D70; 16.1 before 16.1R2. 16.2R1 and all subsequent releases have a resolution for this vulnerability.

  • Published: Apr 24, 2017
  • Updated: Nov 9, 2025
  • CVE: CVE-2017-2312
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:L/Au:S/C:N/I:N/A:C

CWEs:

Software From Fixed in
juniper / junos 13.3-r7 13.3-r7.x
juniper / junos 13.3-r4 13.3-r4.x
juniper / junos 13.3 13.3.x
juniper / junos 13.3-r5 13.3-r5.x
juniper / junos 13.3-r1 13.3-r1.x
juniper / junos 13.3-r8 13.3-r8.x
juniper / junos 13.3-r9 13.3-r9.x
juniper / junos 13.3-r6 13.3-r6.x
juniper / junos 13.3-r2 13.3-r2.x
juniper / junos 13.3-r3 13.3-r3.x
juniper / junos 14.1-r1 14.1-r1.x
juniper / junos 14.1-r4 14.1-r4.x
juniper / junos 14.1 14.1.x
juniper / junos 14.1-r3 14.1-r3.x
juniper / junos 14.1-r7 14.1-r7.x
juniper / junos 14.1-r6 14.1-r6.x
juniper / junos 14.1-r2 14.1-r2.x
juniper / junos 14.1-r5 14.1-r5.x
juniper / junos 14.2-r1 14.2-r1.x
juniper / junos 14.2-r2 14.2-r2.x
juniper / junos 14.2-r3 14.2-r3.x
juniper / junos 14.2-r6 14.2-r6.x
juniper / junos 14.2-r4 14.2-r4.x
juniper / junos 14.2-r5 14.2-r5.x
juniper / junos 15.1x49-d50 15.1x49-d50.x
juniper / junos 15.1x49-d30 15.1x49-d30.x
juniper / junos 15.1x53-d10 15.1x53-d10.x
juniper / junos 15.1-f2-s3 15.1-f2-s3.x
juniper / junos 15.1x49-d60 15.1x49-d60.x
juniper / junos 15.1x53-d62 15.1x53-d62.x
juniper / junos 15.1-r3 15.1-r3.x
juniper / junos 15.1x53-d20 15.1x53-d20.x
juniper / junos 15.1-f2-s2 15.1-f2-s2.x
juniper / junos 15.1x53-d30 15.1x53-d30.x
juniper / junos 15.1-f4 15.1-f4.x
juniper / junos 15.1-r4 15.1-r4.x
juniper / junos 15.1x53-d33 15.1x53-d33.x
juniper / junos 15.1-f2-s4 15.1-f2-s4.x
juniper / junos 15.1-f6 15.1-f6.x
juniper / junos 15.1-f2 15.1-f2.x
juniper / junos 15.1x49-d35 15.1x49-d35.x
juniper / junos 15.1-f3 15.1-f3.x
juniper / junos 15.1-r2 15.1-r2.x
juniper / junos 15.1x49-d45 15.1x49-d45.x
juniper / junos 15.1x49-d65 15.1x49-d65.x
juniper / junos 15.1x53-d32 15.1x53-d32.x
juniper / junos 15.1x53-d34 15.1x53-d34.x
juniper / junos 15.1x53-d210 15.1x53-d210.x
juniper / junos 15.1-r1 15.1-r1.x
juniper / junos 15.1x53-d21 15.1x53-d21.x
juniper / junos 15.1x49-d40 15.1x49-d40.x
juniper / junos 15.1-f2-s1 15.1-f2-s1.x
juniper / junos 15.1x53-d60 15.1x53-d60.x
juniper / junos 15.1-f5 15.1-f5.x
juniper / junos 15.1x49-d20 15.1x49-d20.x
juniper / junos 15.1x53-d61 15.1x53-d61.x
juniper / junos 15.1x49-d10 15.1x49-d10.x
juniper / junos 16.1-r1 16.1-r1.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.