Junos: Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series allows an unauthentica…
Summary
An Improper Locking vulnerability in the GTP plugin of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (Dos). If an SRX Series device receives a specifically malformed GPRS Tunnelling Protocol (GTP) Modify Bearer Request message, a lock is acquired and never released. This results in other threads not being able to acquire a lock themselves, causing a watchdog timeout leading to FPC crash and restart. This issue leads to a complete traffic outage until the device has automatically recovered. This issue affects Junos OS on SRX Series: * all versions before 22.4R3-S8, * 23.2 versions before 23.2R2-S5, * 23.4 versions before 23.4R2-S6, * 24.2 versions before 24.2R2-S3, * 24.4 versions before 24.4R2-S2, * 25.2 versions before 25.2R1-S1, 25.2R2.
- all versions
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
- 22.4R3-S8
- 23.2R2-S5
- 23.4R2-S6
- 24.2R2-S3
- 24.4R2-S2
- 25.2R1-S1
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
Mitigation
Mitigation steps weren't captured by the parser for this advisory — this is a parsing gap, not a statement that no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 7 hours ago·verify at source
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