Vulnerability Name:

CVE-2017-2340 (CCN-124552)

Assigned:2016-12-01
Published:2017-04-13
Updated:2017-07-11
Summary:On Juniper Networks Junos OS 15.1 releases from 15.1R3 to 15.1R4, 16.1 prior to 16.1R3, on M/MX platforms where Enhanced Subscriber Management for DHCPv6 subscribers is configured, a vulnerability in processing IPv6 ND packets originating from subscribers and destined to M/MX series routers can result in a PFE (Packet Forwarding Engine) hang or crash.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-2340

Source: CCN
Type: SECTRACK ID: 1038254
Juniper Junos on M/MX Series Routers IPv6 ND Packet Processing Flaw Lets Remote Users Cause the Target Service to Crash

Source: BID
Type: Third Party Advisory, VDB Entry
97607

Source: CCN
Type: BID-97607
Juniper Junos CVE-2017-2340 Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1038254

Source: XF
Type: UNKNOWN
juniper-cve20172340-dos(124552)

Source: CCN
Type: Juniper Networks Security Bulletin JSA10786
Junos: PFE crash while handling IPv6 ND advertisements (CVE-2017-2340)

Source: CONFIRM
Type: Vendor Advisory
https://kb.juniper.net/JSA10786

Vulnerable Configuration:Configuration 1:
  • cpe:/o:juniper:junos:15.1:r3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:15.1:r4:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:16.1:r1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos:16.1:r2:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    juniper junos 15.1 r3
    juniper junos 15.1 r4
    juniper junos 16.1 r1
    juniper junos 16.1 r2