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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

Quick assessment

Affected
Juniper Networks Junos OS Evolved
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Juniper Networks Junos OS Evolved是美国瞻博网络（Juniper Networks）公司的Junos OS 的升级版系统。 Juniper Networks Junos OS Evolved存在安全漏洞，该漏洞源于存在一个未检查输入大小的缓冲区复制漏洞，允许未经身份验证的相邻攻击者造成拒绝服务(DoS)。

CVSS 6.5 · Medium EPSS 0.33% · P24
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I. Basic Information for CVE-2024-39538

Vulnerability Information
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Vulnerability Title
Junos OS Evolved: ACX7000 Series: When multicast traffic with a specific (S,G) is received evo-pfemand crashes
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Juniper Networks Junos OS Evolved 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS Evolved是美国瞻博网络（Juniper Networks）公司的Junos OS 的升级版系统。 Juniper Networks Junos OS Evolved存在安全漏洞，该漏洞源于存在一个未检查输入大小的缓冲区复制漏洞，允许未经身份验证的相邻攻击者造成拒绝服务(DoS)。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Juniper Networks Junos OS Evolved 0 ~ 21.2R3-S8-EVO -

II. Public POCs for CVE-2024-39538

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III. Intelligence Information for CVE-2024-39538

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Other References for CVE-2024-39538 (1)

Same Patch Batch · Juniper Networks · 2024-07-11 · 29 CVEs total

CVE-2024-39520 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39521 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39522 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39523 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39524 7.8 HIGH Junos OS Evolved: CLI parameter processing issue allows privilege escalation
CVE-2024-39542 7.5 HIGH Junos OS and Junos OS Evolved: A malformed CFM packet or specific transit traffic leads to
CVE-2024-39545 7.5 HIGH Junos OS: SRX Series, MX Series with SPC3 and NFX350: When VPN tunnels parameters are not
CVE-2024-39540 7.5 HIGH Junos OS: SRX Series, and MX Series with SPC3: Specific valid TCP traffic can cause a pfe
CVE-2024-39548 7.5 HIGH Junos OS Evolved: Receipt of specific packets in the aftmand process will lead to a memory
CVE-2024-39549 7.5 HIGH Junos OS and Junos OS Evolved: Receipt of malformed BGP path attributes leads to a memory
CVE-2024-39551 7.5 HIGH Junos OS: SRX Series and MX Series with SPC3 and MS-MPC/MIC: Receipt of specific packets i
CVE-2024-39552 7.5 HIGH Junos OS and Junos OS Evolved: Malformed BGP UPDATE causes RPD crash
CVE-2024-39531 7.5 HIGH Junos OS Evolved: ACX 7000 Series: Protocol specific DDoS configuration affects other prot
CVE-2024-39530 7.5 HIGH Junos OS: Attempting to access specific sensors on platforms not supporting these will lea
CVE-2024-39529 7.5 HIGH Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scen
CVE-2024-39546 7.3 HIGH Junos OS Evolved: Local low-privilege user can gain root permissions leading to privilege
CVE-2024-39550 6.5 MEDIUM Junos OS: MX Series with SPC3 line card: Port flaps causes rtlogd memory leak leading to D
CVE-2024-39519 6.5 MEDIUM Junos OS Evolved: ACX 7000 Series: Multicast traffic is looped in a multihoming EVPN MPLS
CVE-2024-39553 6.5 MEDIUM Junos OS Evolved: Receipt of arbitrary data when sampling service is enabled, leads to par
CVE-2024-39543 6.5 MEDIUM Junos OS and Junos OS Evolved: Receipt of a large RPKI-RTR PDU packet can cause rpd to cra

Showing top 20 of 29 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS Evolved
Same vendor: Juniper Networks
Same weakness: CWE-120

V. Comments for CVE-2024-39538

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