CVE-2023-28984
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: QFX Series: The PFE may crash when a lot of MAC addresses are being learned and aged
A Use After Free vulnerability in the Layer 2 Address Learning Manager (l2alm) of Juniper Networks Junos OS on QFX Series allows an adjacent attacker to cause the Packet Forwarding Engine to crash and restart, leading to a Denial of Service (DoS). The PFE may crash when a lot of MAC learning and aging happens, but due to a Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization) that is outside the attackers direct control. This issue affects: Juniper Networks Junos OS versions prior to 19.4R3-S10 on QFX Series; 20.2 versions prior to 20.2R3-S7 on QFX Series; 20.3 versions prior to 20.3R3-S6 on QFX Series; 20.4 versions prior to 20.4R3-S5 on QFX Series; 21.1 versions prior to 21.1R3-S4 on QFX Series; 21.2 versions prior to 21.2R3-S3 on QFX Series; 21.3 versions prior to 21.3R3-S3 on QFX Series; 21.4 versions prior to 21.4R3 on QFX Series; 22.1 versions prior to 22.1R3 on QFX Series; 22.2 versions prior to 22.2R2 on QFX Series.
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
- QFX Series
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | 19.4R3-S10 | Unavailable | None listed |
| 20.2 | affected | custom | 20.2R3-S7 | Unavailable | None listed |
| 20.3 | affected | custom | 20.3R3-S6 | Unavailable | None listed |
| 20.4 | affected | custom | 20.4R3-S5 | Unavailable | None listed |
| 21.1 | affected | custom | 21.1R3-S4 | 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 | Unavailable | None listed |
| 22.1 | affected | custom | 22.1R3 | Unavailable | None listed |
| 22.2 | affected | custom | 22.2R2 | Unavailable | None listed |