CVE-2024-39557— Junos OS Evolved: MAC table changes cause a memory leak
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I. Basic Information for CVE-2024-39557
Vulnerability Information
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Vulnerability Title
Junos OS Evolved: MAC table changes cause a memory leak
Source: NVD (National Vulnerability Database)
Vulnerability Description
An Uncontrolled Resource Consumption vulnerability in the Layer 2 Address Learning Daemon (l2ald) of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a memory leak, eventually exhausting all system memory, leading to a system crash and Denial of Service (DoS). Certain MAC table updates cause a small amount of memory to leak. Once memory utilization reaches its limit, the issue will result in a system crash and restart. To identify the issue, execute the CLI command: user@device> show platform application-info allocations app l2ald-agent EVL Object Allocation Statistics: Node Application Context Name Live Allocs Fails Guids re0 l2ald-agent net::juniper::rtnh::L2Rtinfo 1069096 1069302 0 1069302 re0 l2ald-agent net::juniper::rtnh::NHOpaqueTlv 114 195 0 195 This issue affects Junos OS Evolved: * All versions before 21.4R3-S8-EVO, * from 22.2-EVO before 22.2R3-S4-EVO, * from 22.3-EVO before 22.3R3-S3-EVO, * from 22.4-EVO before 22.4R3-EVO, * from 23.2-EVO before 23.2R2-EVO.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
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，该漏洞源于第2层地址学习守护程序中存在不受控制的资源消耗漏洞，从而导致系统崩溃和拒绝服务(DoS)。受影响版本如下：21.2-EVO版本、21.4-EVO版本、22.2-EVO版本、22.3-EVO版本、22.4-EVO版本、23.2-EVO。
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 ~ 21.4R3-S8-EVO | - |
II. Public POCs for CVE-2024-39557
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|---|
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- https://supportportal.juniper.net/JSA83017vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2024-39557
Same Patch Batch · Juniper Networks · 2024-07-10 · 15 CVEs total
| CVE-2024-39518 | 7.5 HIGH | Junos OS: MX240, MX480, MX960 platforms using MPC10E: Memory leak will be observed when su |
| CVE-2024-39562 | 7.5 HIGH | Junos OS Evolved: A high rate of SSH connections causes a Denial of Service |
| CVE-2024-39555 | 7.5 HIGH | Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP update causes the sessi |
| CVE-2024-39512 | 6.6 MEDIUM | Junos OS Evolved: User is not logged out when the console cable is disconnected |
| CVE-2024-39517 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: Upon processing specific L2 traffic, rpd can hang in device |
| CVE-2024-39514 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: Receiving specific traffic on devices with EVPN-VPWS with I |
| CVE-2024-39560 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: Memory leak due to RSVP neighbor persistent error leading t |
| CVE-2024-39558 | 6.5 MEDIUM | Junos OS and Junos OS Evolved: Receipt of specific PIM packet causes rpd crash when PIM is |
| CVE-2024-39556 | 6.4 MEDIUM | Junos OS and Junos OS Evolved: Loading a malicious certificate from the CLI may result in |
| CVE-2024-39559 | 5.9 MEDIUM | Junos OS Evolved: Receipt of a specific TCP packet may result in a system crash (vmcore) o |
| CVE-2024-39554 | 5.9 MEDIUM | Junos OS and Junos OS Evolved: BGP multipath incremental calculation is resulting in an rp |
| CVE-2024-39561 | 5.8 MEDIUM | Junos OS: SRX4600, SRX5000 Series: TCP packets with SYN/FIN or SYN/RST are transferred aft |
| CVE-2024-39513 | 5.5 MEDIUM | Junos OS Evolved: Execution of a specific CLI command will cause a crash in the AFT manage |
| CVE-2024-39511 | 5.5 MEDIUM | Junos OS: The 802.1X Authentication Daemon crashes on running a specific command |
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V. Comments for CVE-2024-39557
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