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Attacker Value
Unknown
CVE-2023-36842
Disclosure Date: January 12, 2024 (last updated January 19, 2024)
An Improper Check for Unusual or Exceptional Conditions vulnerability in Juniper DHCP Daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause the jdhcpd to consume all the CPU cycles resulting in a Denial of Service (DoS).
On Junos OS devices with forward-snooped-client configured, if an attacker sends a specific DHCP packet to a non-configured interface, this will cause an infinite loop. The DHCP process will have to be restarted to recover the service.
This issue affects:
Juniper Networks Junos OS
* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S7;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S2;
* 22.4 versions earlier than 22.4R2-S2, 22.4R3;
* 23.2 versions earlier than 23.2R2.
0
Attacker Value
Unknown
CVE-2023-44204
Disclosure Date: October 13, 2023 (last updated October 20, 2023)
An Improper Validation of Syntactic Correctness of Input vulnerability in Routing Protocol Daemon (rpd) Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS).
When a malformed BGP UPDATE packet is received over an established BGP session, the rpd crashes and restarts.
This issue affects both eBGP and iBGP implementations.
This issue affects:
Juniper Networks Junos OS
* 21.4 versions prior to 21.4R3-S4;
* 22.1 versions prior to 22.1R3-S3;
* 22.2 versions prior to 22.2R3-S2;
* 22.3 versions prior to 22.3R2-S2, 22.3R3;
* 22.4 versions prior to 22.4R2-S1, 22.4R3;
* 23.2 versions prior to 23.2R1, 23.2R2;
Juniper Networks Junos OS Evolved
* 21.4 versions prior to 21.4R3-S5-EVO;
* 22.1 versions prior to 22.1R3-S3-EVO;
* 22.2 versions prior to 22.2R3-S3-EVO;
* 22.3 versions prior to 22.3R2-S2-EVO;
* 22.4 versions prior to 22.4R3-EVO;
* 23.2 versions prior to 23.2R2-…
0
Attacker Value
Unknown
CVE-2023-44196
Disclosure Date: October 13, 2023 (last updated October 21, 2023)
An Improper Check for Unusual or Exceptional Conditions in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS Evolved on PTX10003 Series allows an unauthenticated adjacent attacker to cause an impact to the integrity of the system.
When specific transit MPLS packets are received by the PFE, these packets are internally forwarded to the RE. This issue is a prerequisite for CVE-2023-44195.
This issue affects Juniper Networks Junos OS Evolved:
* All versions prior to 20.4R3-S8-EVO;
* 21.1-EVO version 21.1R1-EVO and later;
* 21.2-EVO versions prior to 21.2R3-S6-EVO;
* 21.3-EVO version 21.3R1-EVO and later;
* 21.4-EVO versions prior to 21.4R3-S3-EVO;
* 22.1-EVO versions prior to 22.1R3-S4-EVO;
* 22.2-EVO versions prior to 22.2R3-S3-EVO;
* 22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-EVO;
* 22.4-EVO versions prior to 22.4R2-EVO.
0
Attacker Value
Unknown
CVE-2023-44195
Disclosure Date: October 13, 2023 (last updated October 25, 2023)
An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the NetworkStack agent daemon (nsagentd) of Juniper Networks Junos OS Evolved allows an unauthenticated network based attacker to cause limited impact to the availability of the system.
If specific packets reach the Routing-Engine (RE) these will be processed normally even if firewall filters are in place which should have prevented this. This can lead to a limited, increased consumption of resources resulting in a Denial-of-Service (DoS), and unauthorized access.
CVE-2023-44196 is a prerequisite for this issue.
This issue affects Juniper Networks Junos OS Evolved:
* 21.3-EVO versions prior to 21.3R3-S5-EVO;
* 21.4-EVO versions prior to 21.4R3-S4-EVO;
* 22.1-EVO version 22.1R1-EVO and later;
* 22.2-EVO version 22.2R1-EVO and later;
* 22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;
* 22.4-EVO versions prior to 22.4R3-EVO.
This issue doesn't not affected Junos OS…
0
Attacker Value
Unknown
CVE-2023-44192
Disclosure Date: October 13, 2023 (last updated October 21, 2023)
An Improper Input Validation vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause memory leak, leading to Denial of Service (DoS).
On all Junos OS QFX5000 Series platforms, when pseudo-VTEP (Virtual Tunnel End Point) is configured under EVPN-VXLAN scenario, and specific DHCP packets are transmitted, DMA memory leak is observed. Continuous receipt of these specific DHCP packets will cause memory leak to reach 99% and then cause the protocols to stop working and traffic is impacted, leading to Denial of Service (DoS) condition. A manual reboot of the system recovers from the memory leak.
To confirm the memory leak, monitor for "sheaf:possible leak" and "vtep not found" messages in the logs.
This issue affects:
Juniper Networks Junos OS QFX5000 Series:
* All versions prior to 20.4R3-S6;
* 21.1 versions prior to 21.1R3-S5;
* 21.2 versions prior to 21.2R3-S5;
* 21.3 versions prior to 21.3R3…
0
Attacker Value
Unknown
CVE-2023-44191
Disclosure Date: October 13, 2023 (last updated October 21, 2023)
An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).
On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.
This issue affects:
Juniper Networks Junos OS on QFX5000 Series and EX4000 Series
* 21.1 versions prior to 21.1R3-S5;
* 21.2 versions prior to 21.2R3-S5;
* 21.3 versions prior to 21.3R3-S5;
* 21.4 versions prior to 21.4R3-S4;
* 22.1 versions prior to 22.1R3-S3;
* 22.2 versions prior to 22.2R3-S1;
* 22.3 versions prior to 22.3R2-S2, 22.3R3;
* 22.4 versions prior to 22.4R2.
This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1
0
Attacker Value
Unknown
CVE-2023-44184
Disclosure Date: October 13, 2023 (last updated October 21, 2023)
An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the management daemon (mgd) process of Juniper Networks Junos OS and Junos OS Evolved allows a network-based authenticated low-privileged attacker, by executing a specific command via NETCONF, to cause a CPU Denial of Service to the device's control plane.
This issue affects:
Juniper Networks Junos OS
* All versions prior to 20.4R3-S7;
* 21.2 versions prior to 21.2R3-S5;
* 21.3 versions prior to 21.3R3-S5;
* 21.4 versions prior to 21.4R3-S4;
* 22.1 versions prior to 22.1R3-S2;
* 22.2 versions prior to 22.2R3;
* 22.3 versions prior to 22.3R2-S1, 22.3R3;
* 22.4 versions prior to 22.4R1-S2, 22.4R2.
Juniper Networks Junos OS Evolved
* All versions prior to 21.4R3-S4-EVO;
* 22.1 versions prior to 22.1R3-S2-EVO;
* 22.2 versions prior to 22.2R3-EVO;
* 22.3 versions prior to 22.3R3-EVO;
* 22.4 versions prior to 22.4R2-EVO.
An indicator of compromi…
0
Attacker Value
Unknown
CVE-2023-44183
Disclosure Date: October 13, 2023 (last updated October 21, 2023)
An Improper Input Validation vulnerability in the VxLAN packet forwarding engine (PFE) of Juniper Networks Junos OS on QFX5000 Series, EX4600 Series devices allows an unauthenticated, adjacent attacker, sending two or more genuine packets in the same VxLAN topology to possibly cause a DMA memory leak to occur under various specific operational conditions. The scenario described here is the worst-case scenario. There are other scenarios that require operator action to occur.
An indicator of compromise may be seen when multiple devices indicate that FPC0 has gone missing when issuing a show chassis fpc command for about 10 to 20 minutes, and a number of interfaces have also gone missing.
Use the following command to determine if FPC0 has gone missing from the device.
show chassis fpc detail
This issue affects:
Juniper Networks Junos OS on QFX5000 Series, EX4600 Series:
* 18.4 version 18.4R2 and later versions prior to 20.4R3-S8;
* 21.1 version 21.1R1 and later versions pri…
0
Attacker Value
Unknown
CVE-2023-44178
Disclosure Date: October 13, 2023 (last updated October 20, 2023)
A Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos OS allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.
Repeated actions by the attacker will create a sustained Denial of Service (DoS) condition.
This issue affects Juniper Networks:
Junos OS
* All versions prior to 19.1R3-S10;
* 19.2 versions prior to 19.2R3-S7;
* 19.3 versions prior to 19.3R3-S8;
* 19.4 versions prior to 19.4R3-S12;
* 20.2 versions prior to 20.2R3-S8;
* 20.4 versions prior to 20.4R3-S8;
* 21.2 versions prior to 21.2R3-S6;
* 21.3 versions prior to 21.3R3-S5;
* 21.4 versions prior to 21.4R3-S5;
* 22.1 versions prior to 22.1R3-S3;
* 22.2 versions prior to 22.2R3-S2;
* 22.3 versions prior to 22.3R3-S1;
* 22.4 versions prior to 22.4R2-S1;
* 23.2 versions prior to 23.2R2.
0
Attacker Value
Unknown
CVE-2023-44177
Disclosure Date: October 13, 2023 (last updated October 20, 2023)
A Stack-based Buffer Overflow vulnerability in the CLI command of Juniper Networks Junos and Junos EVO allows a low privileged attacker to execute a specific CLI commands leading to Denial of Service.
Repeated actions by the attacker will create a sustained Denial of Service (DoS) condition.
This issue affects Juniper Networks:
Junos OS:
* All versions prior to 19.1R3-S10;
* 19.2 versions prior to 19.2R3-S7;
* 19.3 versions prior to 19.3R3-S8;
* 19.4 versions prior to 19.4R3-S12;
* 20.2 versions prior to 20.2R3-S8;
* 20.4 versions prior to 20.4R3-S8;
* 21.2 versions prior to 21.2R3-S6;
* 21.3 versions prior to 21.3R3-S5;
* 21.4 versions prior to 21.4R3-S4;
* 22.1 versions prior to 22.1R3-S3;
* 22.2 versions prior to 22.2R3-S1;
* 22.3 versions prior to 22.3R3;
* 22.4 versions prior to 22.4R2.
Junos OS Evolved:
* All versions prior to 20.4R3-S8-EVO;
* 21.2 versions prior to 21.2R3-S6-EVO;
* 21.3 versions prior to 21.3R3-S5-EV…
0
