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CVE-2021-0216
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
A vulnerability in Juniper Networks Junos OS running on the ACX5448 and ACX710 platforms may cause BFD sessions to flap when a high rate of transit ARP packets are received. This, in turn, may impact routing protocols and network stability, leading to a Denial of Service (DoS) condition. When a high rate of transit ARP packets are exceptioned to the CPU and BFD flaps, the following log messages may be seen: bfdd[15864]: BFDD_STATE_UP_TO_DOWN: BFD Session 192.168.14.3 (IFL 232) state Up -> Down LD/RD(17/19) Up time:11:38:17 Local diag: CtlExpire Remote diag: None Reason: Detect Timer Expiry. bfdd[15864]: BFDD_TRAP_SHOP_STATE_DOWN: local discriminator: 17, new state: down, interface: irb.998, peer addr: 192.168.14.3 rpd[15839]: RPD_ISIS_ADJDOWN: IS-IS lost L2 adjacency to peer on irb.998, reason: BFD Session Down bfdd[15864]: BFDD_TRAP_SHOP_STATE_UP: local discriminator: 17, new state: up, interface: irb.998, peer addr: 192.168.14.3 This issue only affects the ACX5448 Series and ACX710 Series routers. No other products or platforms are affected by this vulnerability. This issue affects Juniper Networks Junos OS: 18.2 versions prior to 18.2R3-S8 on ACX5448; 18.3 versions prior to 18.3R3-S5 on ACX5448; 18.4 versions prior to 18.4R1-S6, 18.4R3-S7 on ACX5448; 19.1 versions prior to 19.1R3-S5 on ACX5448; 19.2 versions prior to 19.2R2, 19.2R3 on ACX5448; 19.3 versions prior to 19.3R3 on ACX5448; 19.4 versions prior to 19.4R3 on ACX5448; 20.1 versions prior to 20.1R2 on ACX5448; 20.2 versions prior to 20.2R2 on ACX5448 and ACX710..
CVSSv2.0 Score
- Severity
- Low
- Base Score
- 3.3/10
- Exploit Score
- 6.5/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 2.9/10
- Confidentiality Impact
- None
- Availability Impact
- Partial
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 6.5/10
- Exploit Score
- 2.8/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 3.6/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:h:juniper:acx5448:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:juniper:acx710:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r2-s7:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3-s6:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.2:r3-s7:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r3-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r3-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r2-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r3-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r2-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r3-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r1-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:18.4:r3-s6:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r3-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r3-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* |
Yes
|
- | ||
cpe:2.3:h:juniper:acx5448:-:*:*:*:*:*:*:* |
No
|
- |