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CVE-2024-39538

Junos OS Evolved: ACX7000 Series: When multicast traffic with a specific (S,G) is received evo-pfemand crashes

Assignerjuniper
Reserved2024-06-25
Published2024-07-11
Updated2024-07-11

Description

A Buffer Copy without Checking Size of Input vulnerability in the PFE management daemon (evo-pfemand) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a  Denial-of-Service (DoS).When multicast traffic with a specific, valid (S,G) is received, evo-pfemand crashes which leads to an outage of the affected FPC until it is manually recovered. This issue affects Junos OS Evolved on ACX7000 Series: * All versions before 21.2R3-S8-EVO, * 21.4-EVO versions before 21.4R3-S7-EVO, * 22.2-EVO versions before 22.2R3-S4-EVO, * 22.3-EVO versions before 22.3R3-S3-EVO,  * 22.4-EVO versions before 22.4R3-S2-EVO,  * 23.2-EVO versions before 23.2R2-EVO,  * 23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.



MEDIUM: 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
HIGH: 7.1CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

Problem types

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

Default status
unaffected

Any version before 21.2R3-S8-EVO
affected

21.4-EVO before 21.4R3-S7-EVO
affected

22.2-EVO before 22.2R3-S4-EVO
affected

22.3-EVO before 22.3R3-S3-EVO
affected

22.4-EVO before 22.4R3-S2-EVO
affected

23.2-EVO before 23.2R2-EVO
affected

23.4-EVO before 23.4R1-S2-EVO, 23.4R2-EVO
affected

References

https://supportportal.juniper.net/JSA82998 vendor-advisory

cve.org CVE-2024-39538

nvd.nist.gov CVE-2024-39538

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