CVE-2021-0217 Junos OS: EX Series and QFX Series: Memory leak issue processing specific DHCP packets

A vulnerability in processing of certain DHCP packets from adjacent clients on EX Series and QFX Series switches running Juniper Networks Junos OS with DHCP local/relay server configured may lead to exhaustion of DMA memory causing a Denial of Service DoS. Over time, exploitation of this...

CVE-2021-0215 Junos OS: EX Series, QFX Series, SRX Branch Series, MX Series: Memory leak in packet forwarding engine due to 802.1X authenticator port interface flaps

On Juniper Networks Junos EX series, QFX Series, MX Series and SRX branch series devices, a memory leak occurs every time the 802.1X authenticator port interface flaps which can lead to other processes, such as the pfex process, responsible for packet forwarding, to crash and restart. An...

CVE-2021-0215

The CVE-2021-0215 issue is a memory leak in Juniper Junos OS on EX/QFX/MX/SRX devices triggered when the 802.1X authenticator port interface flaps. The pfex process (packet forwarding) can crash and restart as memory grows. Several Junos OS releases are affected across multiple lines and versions...

CVE-2021-0211

CVE-2021-0211 describes an improper check in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) that allows an attacker to inject a valid BGP FlowSpec message, causing unexpected changes to route advertisements in the BGP FlowSpec domain and leading to a DoS condition. A...

CVE-2021-0211 Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted.

An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon RPD service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain...

CVE-2021-0209

CVE-2021-0209 affects Juniper Networks Junos OS Evolved (RPD daemon) where processing certain valid BGP update packets can lead to an uninitialized pointer dereference, causing RPD to core and a Denial of Service. The DoS can persist with continued receipt of such packets and requires an RPD rest...

CVE-2021-0210 Junos OS: Privilege escalation in J-Web due to arbitrary command and code execution via information disclosure from another users active session

An Information Exposure vulnerability in J-Web of Juniper Networks Junos OS allows an unauthenticated attacker to elevate their privileges over the target system through opportunistic use of an authenticated users session. This issue affects: Juniper Networks Junos OS 12.3 versions prior to...

CVE-2021-0210

CVE-2021-0210 affects Juniper Networks Junos OS and specifically the J-Web interface. The vulnerability is an information exposure flaw that enables an unauthenticated attacker to leverage an authenticated user session to elevate privileges. Affected versions include multiple release tracks acros...

CVE-2021-0208

Technical details beyond the initial description are not provided in the connected documents; monitor for updates on CVE-2021-0208 via Juniper/NCSC pages.

CVE-2021-0208 Junos OS and Junos OS Evolved: In bidirectional LSP configurations, on MPLS egress router RPD may core upon receipt of specific malformed RSVP packet.

An improper input validation vulnerability in the Routing Protocol Daemon RPD service of Juniper Networks Junos OS allows an attacker to send a malformed RSVP packet when bidirectional LSPs are in use, which when received by an egress router crashes the RPD causing a Denial of Service DoS...

CVE-2021-0206

CVE-2021-0206 is a NULL pointer dereference in Juniper Junos OS that can crash the Packet Forwarding Engine (PFE) on NFX/SRX platforms when SSL Proxy is enabled, causing a DoS. Exploitation requires sending specific packets over the network. Affected ranges include Junos OS on NFX/SRX: 18.3 befor...

CVE-2021-0207 NFX250, NFX350, QFX5K Series, EX2300 Series, EX3400 Series, EX4300 Multigigabit, EX4600 Series: Certain genuine traffic received by the Junos OS device will be discarded instead of forwarded.

An improper interpretation conflict of certain data between certain software components within the Juniper Networks Junos OS devices does not allow certain traffic to pass through the device upon receipt from an ingress interface filtering certain specific types of traffic which is then being...

CVE-2021-0207

CVE-2021-0207 describes a DoS in Juniper Networks Junos OS caused by an improper interpretation conflict of certain data between software components, where specific traffic received on an ingress interface is filtered and redirected to a different VLAN, preventing forwarding. The issue affects IP...

CVE-2021-0205

CVE-2021-0205 concerns Juniper Junos OS on MX Series when IDS is configured with a dynamic firewall filter using IPv6 prefixes. The issue causes the prefix to be incorrectly matched as /32, potentially blocking legitimate traffic. Affects MX Series devices with MS-MPC/MS-MIC/MS-SPC3 cards and IDS...

CVE-2021-0204 Junos OS: dexp Local Privilege Escalation vulnerabilities in SUID binaries

A sensitive information disclosure vulnerability in delta-export configuration utility dexp of Juniper Networks Junos OS may allow a locally authenticated shell user the ability to create and read database files generated by the dexp utility, including password hashes of local users. Since dexp i...

CVE-2021-0204

CVE-2021-0204 is a local privilege escalation in Juniper Networks Junos OS, affecting the delta-export configuration utility (dexp). The issue arises because dexp is shipped with setuid root ownership, allowing a locally authenticated shell user to run dexp with root privileges and access sensiti...

CVE-2021-0203

The CVE-2021-0203 entry concerns Juniper Junos OS on EX Series and QFX5K Series where a Storm Control profile on the Redundant Trunk Group interface may not activate when the threshold is reached. Affected: EX Series and QFX5K Series; not affecting EX2200, EX3300, EX4200, or EX9200. Vulnerable so...

CVE-2021-0206: NULL Pointer Dereference

A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engine PFE to crash and restart, resulting in a Denial of Service DoS. By continuously sending these specific packets, an attacker can repeatedly disabl...

CVE-2021-0221: Improper Check or Handling of Exceptional Conditions

In an EVPN/VXLAN scenario, if an IRB interface with a virtual gateway address VGA is configured on a PE, a traffic loop may occur upon receipt of specific IP multicast traffic. The traffic loop will cause interface traffic to increase abnormally, ultimately leading to a Denial of Service DoS in...

CVE-2021-0211: Improper Check for Unusual or Exceptional Conditions

An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon RPD service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain...