Vulnerability · Published Jul 11, 2024 · Assigned by juniper

CVE-2024-39543Junos OS and Junos OS Evolved: Receipt of a large RPKI-RTR PDU packet can cause rpd to crash

Medium 6.5

In plain English

A medium-severity buffer overflow in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 73.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects  Junos OS:  * All versions before 21.2R3-S8,  * from 21.4 before 21.4R3-S8, * from 22.2 before 22.2R3-S4,  * from 22.3 before 22.3R3-S3,  * from 22.4 before 22.4R3-S2,  * from 23.2 before 23.2R2-S1,  * from 23.4 before 23.4R2. Junos OS Evolved: * All versions before 21.2R3-S8-EVO, * from 21.4 before 21.4R3-S8-EVO, * from 22.2 before 22.2R3-S4-EVO,  * from 22.3 before 22.3R3-S3-EVO, * from 22.4 before 22.4R3-S2-EVO,  * from 23.2 before 23.2R2-S1-EVO, * from 23.4 before 23.4R2-EVO.

Affected products (as reported)

VendorProductVersions
Juniper Networks Junos OS 0 – before 21.2R3-S821.4 – before 21.4R3-S822.2 – before 22.2R3-S422.3 – before 22.3R3-S322.4 – before 22.4R3-S223.2 – before 23.2R2-S123.4 – before 23.4R2
Juniper Networks Junos OS Evolved 0 – before 21.2R3-S8-EVO21.4 – before 21.4R3-S8-EVO22.2 – before 22.2R3-S4-EVO22.3 – before 22.3R3-S3-EVO22.4 – before 22.4R3-S2-EVO23.2 – before 23.2R2-S1-EVO23.4 – before 23.4R2-EVO

Weakness: CWE-120 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References