CVE-2023-36838— Junos OS: SRX Series: A flowd core occurs when running a low privileged CLI command
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I. Basic Information for CVE-2023-36838
Vulnerability Information
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Vulnerability Title
Junos OS: SRX Series: A flowd core occurs when running a low privileged CLI command
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Out-of-bounds Read vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a local, authenticated attacker with low privileges, to cause a Denial of Service (DoS). If a low privileged user executes a specific CLI command, flowd which is responsible for traffic forwarding in SRX crashes and generates a core dump. This will cause temporary traffic interruption until the flowd process is restarted automatically. Continued execution of this command will lead to a sustained DoS. This issue affects Juniper Networks Junos OS on SRX Series: All versions prior to 20.2R3-S7; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S5; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S4; 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S1; 22.2 versions prior to 22.2R3; 22.3 versions prior to 22.3R2; 22.4 versions prior to 22.4R1-S1, 22.4R2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS SRX 缓冲区错误漏洞
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存在缓冲区错误漏洞，该漏洞源于流处理守护进程(flowd)存在越界读取漏洞。攻击者可利用该漏洞造成拒绝服务（DoS）。受影响的产品和版本：Juniper Networks Junos OS 20.2R3-S7之前的所有版本；20.3R1及更高版
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 | unspecified ~ 20.2R3-S7 | - |
II. Public POCs for CVE-2023-36838
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|---|
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Same Patch Batch · Juniper Networks · 2023-07-14 · 12 CVEs total
| CVE-2023-36835 | 7.5 HIGH | Junos OS: QFX10000 Series: All traffic will be dropped after a specific valid IP packet ha |
| CVE-2023-28985 | 7.5 HIGH | SRX Series and MX Series: An FPC core is observed when IDP is enabled on the device and a |
| CVE-2023-36832 | 7.5 HIGH | Junos OS: MX Series: PFE crash upon receipt of specific packet destined to an AMS interfac |
| CVE-2023-36831 | 7.5 HIGH | Junos OS: SRX Series: jbuf memory leak when SSL Proxy and UTM Web-Filtering is applied |
| CVE-2023-36850 | 6.5 MEDIUM | Junos OS: MX Series: An MPC will crash upon receipt of a malformed CFM packet. |
| CVE-2023-36849 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: The l2cpd will crash when a malformed LLDP packet is receiv |
| CVE-2023-36848 | 6.5 MEDIUM | Junos OS: MX Series: The FPC will crash on receiving a malformed CFM packet |
| CVE-2023-36834 | 6.5 MEDIUM | Junos OS: SRX 4600 and SRX 5000 Series: The receipt of specific genuine packets by SRXes c |
| CVE-2023-36833 | 6.5 MEDIUM | Junos OS Evolved: PTX10001-36MR, and PTX10004, PTX10008, PTX10016 with LC1201/1202: The af |
| CVE-2023-36840 | 5.5 MEDIUM | Junos OS and Junos OS Evolved: An rpd crash occurs when a specific L2VPN command is run |
| CVE-2023-36836 | 4.7 MEDIUM | Junos OS and Junos OS Evolved: In a MoFRR scenario an rpd core may be observed when a low |
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V. Comments for CVE-2023-36838
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