CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
19.7%
A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued receipt of these specific packets will eventually cause a loss of connectivity to and from the device, and requires a reboot to recover. These mbufs can be monitored by using the CLI command ‘show system buffers’: user@host> show system buffers 783/1497/2280 mbufs in use (current/cache/total) user@host> show system buffers 793/1487/2280 mbufs in use (current/cache/total) <<<<<< mbuf usage increased This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2.
Vendor | Product | Version | CPE |
---|---|---|---|
juniper | junos | * | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:* |
juniper | junos | 19.3 | cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:* |