Vulnerability in Juniper Junos
CVE-2019-0001
Receipt of a malformed packet on MX Series devices with dynamic vlan configuration can trigger an uncontrolled recursion loop in the Broadband Edge subscriber management daemon (bbe-smgd), and lead to high CPU usage and a crash of the bbe-smgd service. Repeated receipt of the same packet can result in an extended denial of service condition for the device. Affected releases are Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S1; 16.2 versions prior to 16.2R2-S7; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R3; 17.3 versions prior to 17.3R3-S1; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R3; 18.2 versions prior to 18.2R2.
EPSS: 0.030 (86.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Juniper Junos — versions 16.1, 16.2, 17.1
- Juniper Networks Junos Os — versions 16.1, 16.2, 17.1
- Fedoraproject Fedora — versions 30, 31
Weakness classification (CWE)
Public proof-of-concept exploits
References
- sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)
- sirt@juniper.net (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- sirt@juniper.net (x_refsource_FEDORA, vendor-advisory)
- sirt@juniper.net (x_refsource_FEDORA, vendor-advisory)
Frequently asked questions
- What is CVE-2019-0001?
- CVE-2019-0001 is a high-severity vulnerability in Juniper Junos, classified under Uncontrolled Recursion. CVSS score: 7.5/10. Published 2019-01-15.
- How severe is CVE-2019-0001?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-0001 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.