CVE-2024-30405— Junos OS: SRX 5000 Series with SPC2: Processing of specific crafted packets when ALG is enabled causes a transit traffic Denial of Service
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I. Basic Information for CVE-2024-30405
Vulnerability Information
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Vulnerability Title
Junos OS: SRX 5000 Series with SPC2: Processing of specific crafted packets when ALG is enabled causes a transit traffic Denial of Service
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS). Continued receipt and processing of these specific packets will sustain the Denial of Service condition. This issue affects: Juniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled. * All versions earlier than 21.2R3-S7; * 21.4 versions earlier than 21.4R3-S6; * 22.1 versions earlier than 22.1R3-S5; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S2; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
缓冲区大小计算不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS SRX 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS SRX是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS SRX 5000 21.2R3-S7之前、21.4R3-S6之前、22.1R3-S5之前、22.2R3-S3之前、22.3R3-S2之前版本存在安全漏洞，该漏洞源于设备中使用 SPC2 线卡的缓冲区大小计算不正确，允许攻击者发送特定的精心设计的数据包
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 | 0 ~ 21.2R3-S7 | - |
II. Public POCs for CVE-2024-30405
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|---|
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- Common Vulnerability Scoring System Version 4.0 Calculatortechnical-description
- https://supportportal.juniper.net/JSA79105vendor-advisory
- Common Vulnerability Scoring System Version 4.0 Calculatortechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2024-30405
Same Patch Batch · Juniper Networks · 2024-04-12 · 29 CVEs total
| CVE-2024-30381 | 8.4 HIGH | Paragon Active Assurance: probe_serviced exposes internal objects to local users |
| CVE-2024-30398 | 7.5 HIGH | Junos OS: SRX4600 Series - A high amount of specific traffic causes packet drops and an ev |
| CVE-2024-21598 | 7.5 HIGH | Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to |
| CVE-2024-30397 | 7.5 HIGH | Junos OS: An invalid certificate causes a Denial of Service in the Internet Key Exchange ( |
| CVE-2024-30382 | 7.5 HIGH | Junos OS and Junos OS Evolved: RPD crash when CoS-based forwarding (CBF) policy is configu |
| CVE-2024-30392 | 7.5 HIGH | Junos OS: MX Series with SPC3 and MS-MPC/-MIC: When URL filtering is enabled and a specifi |
| CVE-2024-30394 | 7.5 HIGH | Junos OS and Junos OS Evolved: A specific EVPN type-5 route causes rpd crash |
| CVE-2024-30395 | 7.5 HIGH | Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to |
| CVE-2024-30403 | 6.5 MEDIUM | Junos OS Evolved: When MAC learning happens, and an interface gets flapped, the PFE crashe |
| CVE-2024-30387 | 6.5 MEDIUM | Junos OS: ACX5448 & ACX710: Due to interface flaps the PFE process can crash |
| CVE-2024-30388 | 6.5 MEDIUM | Junos OS: QFX5000 Series and EX Series: Specific malformed LACP packets will cause flaps |
| CVE-2024-21618 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: When LLDP is enabled and a malformed LLDP packet is receive |
| CVE-2024-21609 | 6.5 MEDIUM | Junos OS: MX Series with SPC3, and SRX Series: If specific IPsec parameters are negotiated |
| CVE-2024-21593 | 6.5 MEDIUM | Junos OS: MX Series with MPC10, MPC11, LC9600, and MX304: A specific MPLS packet will caus |
| CVE-2024-21605 | 6.5 MEDIUM | Junos OS: SRX 300 Series: Specific link local traffic causes a control plane overload |
| CVE-2024-30402 | 5.9 MEDIUM | Junos OS and Junos OS Evolved: The l2ald crashes on receiving telemetry messages from a sp |
| CVE-2024-30401 | 5.9 MEDIUM | Junos OS: MX Series and EX9200-15C: Stack-based buffer overflow in aftman |
| CVE-2024-30410 | 5.8 MEDIUM | Junos OS: EX4300 Series: Loopback filter not blocking traffic despite having discard term. |
| CVE-2024-30389 | 5.8 MEDIUM | Junos OS: EX4300 Series: Firewall filter not blocking egress traffic |
| CVE-2024-30384 | 5.5 MEDIUM | Junos OS: EX4300 Series: If a specific CLI command is issued PFE crashes will occur |
Showing top 20 of 29 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Junos OS
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Junos OS: SRX1500, SRX4100, SRX4200, SRX4600: When a specifi - CVE-2026-33785
Junos OS: MX Series: Missing Authorization for specific 'req - CVE-2026-33781
Junos OS: EX Series, QFX Series: In a VXLAN scenario when sp
Same vendor: Juniper Networks
- CVE-2026-33791
Junos OS and Junos OS Evolved: Execution of crafted CLI comm - CVE-2026-33790
Junos OS: SRX Series: In a NAT64 configuration, receipt of a - CVE-2026-33787
Junos OS: SRX1500, SRX4100, SRX4200, SRX4600: When a specifi - CVE-2026-33785
Junos OS: MX Series: Missing Authorization for specific 'req - CVE-2026-33784
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Same weakness: CWE-131
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