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Vulnerability · Published Jul 11, 2024 · Assigned by juniper

CVE-2024-39549Junos OS and Junos OS Evolved: Receipt of malformed BGP path attributes leads to a memory leak

High 7.5

In plain English

A high-severity memory leak 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 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 59.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A Missing Release of Memory after Effective Lifetime vulnerability in the routing process daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a malformed BGP Path attribute update which allocates memory used to log the bad path attribute. This memory is not properly freed in all circumstances, leading to a Denial of Service (DoS). Consumed memory can be freed by manually restarting Routing Protocol Daemon (rpd). Memory utilization could be monitored by:  user@host> show system memory or show system monitor memory status 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-S3, * from 23.2 before 23.2R2-S1,  * from 23.4 before 23.4R1-S2, 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-S3-EVO, * from 23.2 before 23.2R2-S1-EVO, * from 23.4 before 23.4R1-S2-EVO, 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-S323.2 – before 23.2R2-S123.4 – before 23.4R1-S2, 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-S3-EVO23.2 – before 23.2R2-S1-EVO23.4 – before 23.4R1-S2-EVO, 23.4R2-EVO

Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References