CVE-2017-2346
Juniper Networks Junos OS TCP Packet Fragmentation Denial of Service Vulnerability
Description
An MS-MPC or MS-MIC Service PIC may crash when large fragmented packets are passed through an Application Layer Gateway (ALG). Repeated crashes of the Service PC can result in an extended denial of service condition. The issue can be seen only if NAT or stateful-firewall rules are configured with ALGs enabled. This issue was caused by the code change for PR 1182910 in Junos OS 14.1X55-D30, 14.1X55-D35, 14.2R7, 15.1R5, and 16.1R2. No other versions of Junos OS and no other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS on MX platforms running: 14.1X55 from 14.1X55-D30 to releases prior to 14.1X55-D35; 14.2R from 14.2R7 to releases prior to 14.2R7-S4, 14.2R8; 15.1R from 15.1R5 to releases prior to 15.1R5-S2, 15.1R6; 16.1R from 16.1R2 to releases prior to 16.1R3-S2, 16.1R4.
INFO
Published Date :
July 17, 2017, 1:18 p.m.
Last Modified :
April 20, 2025, 1:37 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | MEDIUM | [email protected] |
Solution
- Upgrade to the relevant Junos software release referenced in Juniper security advisory JSA10794. Alternatively, disable NAT and the stateful-firewall if they are not required.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-2346.
| URL | Resource |
|---|---|
| http://www.securitytracker.com/id/1038895 | Third Party Advisory VDB Entry |
| https://kb.juniper.net/JSA10794 | Vendor Advisory |
| http://www.securitytracker.com/id/1038895 | Third Party Advisory VDB Entry |
| https://kb.juniper.net/JSA10794 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-2346 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-2346
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-2346 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-2346 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1038895 Added Reference https://kb.juniper.net/JSA10794 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Juniper Networks, Inc. AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-19 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Jul. 27, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.securitytracker.com/id/1038895 No Types Assigned http://www.securitytracker.com/id/1038895 Third Party Advisory, VDB Entry Changed Reference Type https://kb.juniper.net/JSA10794 No Types Assigned https://kb.juniper.net/JSA10794 Vendor Advisory Added CWE CWE-19 Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:14.1x55:*:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.1x55:d30:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:14.2:r7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:16.1:r:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:16.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:16.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:16.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:16.1:r4:*:*:*:*:*:* OR cpe:2.3:h:juniper:mx:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 18, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1038895 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 17, 2017
Action Type Old Value New Value Removed Reference http://www.securitytracker.com/id/1038895 [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 5.9
Base CVSS Score: 4.3
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.27 }} -0.13%
score
0.47247
percentile