CVE-2023-22402

Summary

A Use After Free vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). In a Non Stop Routing (NSR) scenario, an unexpected kernel restart might be observed if "bgp auto-discovery" is enabled and if there is a BGP neighbor flap of auto-discovery sessions for any reason. This is a race condition which is outside of an attackers direct control and it depends on system internal timing whether this issue occurs. This issue affects Juniper Networks Junos OS Evolved: 21.3 versions prior to 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO; 22.1 versions prior to 22.1R2-EVO; 22.2 versions prior to 22.2R1-S1-EVO, 22.2R2-EVO.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS Evolved21.3 < 21.3R3-EVOaffected
Juniper NetworksJunos OS Evolved21.4 < 21.4R2-EVOaffected
Juniper NetworksJunos OS Evolved22.1 < 22.1R2-EVOaffected
Juniper NetworksJunos OS Evolved22.2 < 22.2R1-S1-EVO, 22.2R2-EVOaffected

Weaknesses

  • CWE-416: CWE-416 Use After Free
  • Denial of Service (DoS)

Workarounds

There are no known workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References