What is CVE-2017-2312?

CVE-2017-2312 is a medium-severity vulnerability in Juniper Junos, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2017-04-24.

How severe is CVE-2017-2312?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2017-2312 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Juniper Junos

CVE-2017-2312

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.

EPSS: 0.016 (72.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 13.3, 14.1, 14.2
Juniper Networks Junos Os With Ldp Enabled — versions 15.1X53 before 15.1X53-D230, 15.1X53-D63, 15.1X53-D70, 15.1 prior to 15.1F2-S14, 15.1F6-S4, 15.1F7, 15.1R4-S7, 15.1R5, 13.3 prior to 13.3R10

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

Public proof-of-concept exploits

PauloPrino/CrewAI-Hacking

References

sirt@juniper.net (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
sirt@juniper.net (vdb-entry, x_refsource_SECTRACK)
sirt@juniper.net (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2017-2312?: CVE-2017-2312 is a medium-severity vulnerability in Juniper Junos, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 6.5/10. Published 2017-04-24.
How severe is CVE-2017-2312?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2017-2312 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.