Description (CNA)
A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the Flow-processing Daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (Dos). On SRX Series devices when two different threads try to simultaneously process a queue which is used for TCP events flowd will crash. One of these threads can not be triggered externally, so the exploitation of this race condition is outside the attackers direct control. Continued exploitation of this issue will lead to a sustained DoS. This issue affects Juniper Networks Junos OS: * 21.2 versions earlier than 21.2R3-S5; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S4; * 22.1 versions earlier than 22.1R3-S3; * 22.2 versions earlier than 22.2R3-S1; * 22.3 versions earlier than 22.3R2-S2, 22.3R3; * 22.4 versions earlier than 22.4R2-S1, 22.4R3. This issue does not affect Juniper Networks Junos OS versions earlier than 21.2R1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Juniper Networks / Junos OS | affected 21.2 before 21.2R3-S5; affected 21.3 before 21.3R3-S5; affected 21.4 before 21.4R3-S4; affected 22.1 before 22.1R3-S3; affected 22.2 before 22.2R3-S1; affected 22.3 before 22.3R2-S2, 22.3R3; affected 22.4 before 22.4R2-S1, 22.4R3 |
CWE
CWE-362
References
- https://supportportal.juniper.net/JSA75742
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.