Junos OS and Junos OS Evolved: LSP flap in a specific MPLS scenario leads to rpd crash
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 22.2R3-S4, 22.4R3-S2, 23.2R2, 23.4R2, 22.2R3-S4-EVO, and 3 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
An Expired Pointer Dereference vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).On all Junos OS and Junos OS Evolved platforms, when an MPLS Label-Switched Path (LSP) is configured with node-link-protection and transport-class, and an LSP flaps, rpd crashes and restarts. Continuous flapping of LSP can cause a sustained Denial of Service (DoS) condition. This issue affects: Junos OS: • All versions before 22.2R3-S4, • 22.4 versions before 22.4R3-S2, • 23.2 versions before 23.2R2, • 23.4 versions before 23.4R2. Junos OS Evolved: • All versions before 22.2R3-S4-EVO, • 22.4-EVO versions before 22.4R3-S2-EVO, • 23.2-EVO versions before 23.2R2-EVO, • 23.4-EVO versions before 23.4R2-EVO.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Juniper Networks Junos OS
fixed in 22.2R3-S4; From 22.4 · fixed in 22.4R3-S2; From 23.2 · fixed in 23.2R2; From 23.4 · fixed in 23.4R2
- Juniper Networks Junos OS Evolved
fixed in 22.2R3-S4-EVO; From 22.4-EVO · fixed in 22.4R3-S2-EVO; From 23.2-EVO · fixed in 23.2R2-EVO; From 23.4-EVO · fixed in 23.4R2-EVO