CVE-2018-0051: juniper networks junos os Improper Input Validation
Vulnerability summary
CVE-2018-0051 is a high (CVSS 7.5) Improper Input Validation vulnerability in juniper networks junos os. EPSS estimates a 1.59% chance of exploitation in the next 30 days, higher than 75.3% of scored vulnerabilities.
Timeline
- 10-10-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
A Denial of Service vulnerability in the SIP application layer gateway (ALG) component of Junos OS based platforms allows an attacker to crash MS-PIC, MS-MIC, MS-MPC, MS-DPC or SRX flow daemon (flowd) process. This issue affects Junos OS devices with NAT or stateful firewall configuration in combination with the SIP ALG enabled. SIP ALG is enabled by default on SRX Series devices except for SRX-HE devices. SRX-HE devices have SIP ALG disabled by default. The status of ALGs in SRX device can be obtained by executing the command: show security alg status Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D77; 12.3X48 versions prior to 12.3X48-D70; 15.1X49 versions prior to 15.1X49-D140; 15.1 versions prior to 15.1R4-S9, 15.1R7-S1; 15.1F6; 16.1 versions prior to 16.1R4-S9, 16.1R6-S1, 16.1R7; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S7, 17.1R3; 17.2 versions prior to 17.2R1-S6, 17.2R2-S4, 17.2R3; 17.3 versions prior to 17.3R1-S5, 17.3R2-S2, 17.3R3; 17.4 versions prior to 17.4R2. No other Juniper Networks products or platforms are affected by this issue.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST5.9MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
1.59%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.59% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Juniper1 product
- junos12.1x46 | 12.1x46:d10 | 12.1x46:d15 | 12.1x46:d20 | 12.1x46:d25 | 12.1x46:d30 | 12.1x46:d35 | 12.1x46:d40 | 12.1x46:d45 | 12.1x46:d50 | 12.1x46:d55 | 12.1x46:d60 | 12.1x46:d65 | 12.3x48 | 12.3x48:d10 | 12.3x48:d15 | 12.3x48:d20 | 12.3x48:d25 | 12.3x48:d30 | 12.3x48:d35 | 12.3x48:d40 | 12.3x48:d45 | 12.3x48:d50 | 12.3x48:d55 | 12.3x48:d60 | 12.3x48:d65 | 15.1x49 | 15.1x49:d10 | 15.1x49:d100 | 15.1x49:d110 | 15.1x49:d120 | 15.1x49:d130 | 15.1x49:d20 | 15.1x49:d30 | 15.1x49:d35 | 15.1x49:d40 | 15.1x49:d45 | 15.1x49:d50 | 15.1x49:d55 | 15.1x49:d60 | 15.1x49:d65 | 15.1x49:d75 | 15.1x49:d80 | 15.1x49:d90 | 15.1 | 15.1:f6 | 15.1:r1 | 15.1:r2 | 15.1:r3 | 15.1:r7-s1 | 16.1 | 16.1:r1 | 16.1:r2 | 16.1:r3 | 16.1:r5 | 16.1:r6-s1 | 16.1:r7 | 16.2 | 16.2:r1 | 16.2:r3 | 17.1 | 17.1:r1 | 17.1:r2 | 17.1:r3 | 17.2 | 17.2:r1 | 17.2:r2-s4 | 17.2:r3 | 17.3 | 17.3:r2-s2 | 17.3:r3 | 17.4 | 17.4:r1
Juniper networks1 product
- junos os≥ 12.1X46, < 12.1X46-D77 | ≥ 12.3X48, < 12.3X48-D70 | ≥ 15.1X49, < 15.1X49-D140 | 15.1F6 | ≥ 15.1, < 15.1R4-S9, 15.1R7-S1 | ≥ 16.1, < 16.1R4-S9, 16.1R6-S1, 16.1R7 | ≥ 16.2, < 16.2R2-S7, 16.2R3 | ≥ 17.1, < 17.1R2-S7, 17.1R3 | ≥ 17.2, < 17.2R1-S6, 17.2R2-S4, 17.2R3 | ≥ 17.3, < 17.3R1-S5, 17.3R2-S2, 17.3R3 | ≥ 17.4, < 17.4R2
2 vendors · 2 products