Vulnerabilities > CVE-2024-39560

Attack vector
Attack complexity
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Confidentiality impact
Integrity impact
Availability impact
low complexity


An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a logically adjacent downstream RSVP neighbor to cause kernel memory exhaustion, leading to a kernel crash, resulting in a Denial of Service (DoS). The kernel memory leak and eventual crash will be seen when the downstream RSVP neighbor has a persistent error which will not be corrected. System kernel memory can be monitored through the use of the 'show system statistics kernel memory' command as shown below: user@router> show system statistics kernel memory Memory               Size (kB) Percentage When   Active                 753092     18.4% Now   Inactive               574300     14.0% Now   Wired                  443236     10.8% Now   Cached                1911204     46.6% Now   Buf                     32768      0.8% Now   Free                   385072      9.4% Now Kernel Memory                             Now   Data                   312908      7.6% Now   Text                     2560      0.1% Now ... This issue affects: Junos OS: * All versions before 20.4R3-S9, * All versions of 21.2, * from 21.4 before 21.4R3-S5, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3, * from 23.2 before 23.2R2; Junos OS Evolved: * All versions before 21.4R3-S5-EVO, * from 22.1-EVO before 22.1R3-S5-EVO, * from 22.2-EVO before 22.2R3-S3-EVO, * from 22.3-EVO before 22.3R3-S2-EVO, * from 22.4-EVO before 22.4R3-EVO, * from 23.2-EVO before 23.2R2-EVO.