CVE-2023-36834
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Junos OS: SRX 4600 and SRX 5000 Series: The receipt of specific genuine packets by SRXes configured for L2 transparency will cause a DoS
An Incomplete Internal State Distinction vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX 4600 and SRX 5000 Series allows an adjacent attacker to cause a Denial of Service (DoS). If an SRX is configured in L2 transparent mode the receipt of a specific genuine packet can cause a single Packet Processing Engines (PPE) component of the PFE to run into a loop, which in turn will render the PPE unavailable. Each packet will cause one PPE to get into a loop, leading to a gradual performance degradation until all PPEs are unavailable and all traffic processing stops. To recover the affected FPC need to be restarted. This issue affects Juniper Networks Junos OS on SRX 4600 and SRX 5000 Series: 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S7; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S7; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S1; 22.1 versions prior to 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R1-S1, 22.3R2.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Junos OS
- Vendor
- Juniper Networks
- Product
- Junos OS
- Platforms
- SRX4600
- SRX 5000 Series
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 20.1 | affected | custom | 20.1* | Unavailable |
|
| 20.2 | affected | custom | 20.2R3-S7 | Unavailable | None listed |
| 20.3 | affected | custom | 20.3* | Unavailable |
|
| 20.4 | affected | custom | 20.4R3-S7 | Unavailable | None listed |
| 21.1 | affected | custom | 21.1R3-S5 | Unavailable | None listed |
| 21.2 | affected | custom | 21.2R3-S3 | Unavailable | None listed |
| 21.3 | affected | custom | 21.3R3-S3 | Unavailable | None listed |
| 21.4 | affected | custom | 21.4R3-S1 | Unavailable | None listed |
| 22.1 | affected | custom | 22.1R3 | Unavailable | None listed |
| 22.2 | affected | custom | 22.2R2 | Unavailable | None listed |
| 22.3 | affected | custom | 22.3R1-S1, 22.3R2 | Unavailable | None listed |