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Unrated severityNVD Advisory· Published Oct 18, 2022· Updated May 10, 2025

Junos OS: SRX Series and MX Series: When specific valid SIP packets are received the PFE will crash

CVE-2022-22236

Description

An Access of Uninitialized Pointer vulnerability in SIP Application Layer Gateway (ALG) of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When specific valid SIP packets are received the PFE will crash and restart. This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R1-S2, 21.4R2; 22.1 versions prior to 22.1R1-S1, 22.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1.

Affected products

2
  • Juniper Networks/Junosllm-fuzzy2 versions
    >=20.4R1, <20.4R3-S4 or >=21.1, <21.1R3-S2 or >=21.2, <21.2R3-S2 or >=21.3, <21.3R2-S2 / 21.3R3 or >=21.4, <21.4R1-S2 / 21.4R2 or >=22.1, <22.1R1-S1 / 22.1R2+ 1 more
    • (no CPE)range: >=20.4R1, <20.4R3-S4 or >=21.1, <21.1R3-S2 or >=21.2, <21.2R3-S2 or >=21.3, <21.3R2-S2 / 21.3R3 or >=21.4, <21.4R1-S2 / 21.4R2 or >=22.1, <22.1R1-S1 / 22.1R2
    • (no CPE)range: 20.4

Patches

Vulnerability mechanics

References

1

News mentions

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