High severity · published Oct 18, 2022
CVE-2022-22236
Junos OS: SRX Series and MX Series: When specific valid SIP packets are received the PFE will crash
7.5
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS · Juniper
20.4 before 20.4R3-S4; 21.1 before 21.1R3-S2; 21.2 before 21.2R3-S2; 21.3 before 21.3R2-S2, 21.3R3; 21.4 before 21.4R1-S2, 21.4R2; 22.1 before 22.1R1-S1, 22.1R2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-22236
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-22236
Vendor Advisory
https://kb.juniper.net/JSA69892
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