CVE-2021-0299— Juniper Networks Junos OS 安全漏洞
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I. CVE-2021-0299の基本情報
脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
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脆弱性タイトル
Junos OS: Kernel crash (vmcore) upon receipt of a malformed IPv6 packet
ソース: NVD (National Vulnerability Database)
脆弱性説明
An Improper Handling of Exceptional Conditions vulnerability in the processing of a transit or directly received malformed IPv6 packet in Juniper Networks Junos OS results in a kernel crash, causing the device to restart, leading to a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems with IPv6 configured. Devices with only IPv4 configured are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
对异常条件的处理不恰当
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Juniper Networks Junos OS 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Juniper Networks Junos OS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 存在安全漏洞，目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| Juniper Networks | Junos OS | unspecified ~ 19.4R1 | - |
II. CVE-2021-0299の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
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公開POCは見つかりませんでした。
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Same Patch Batch · Juniper Networks · 2021-10-19 · 42 CVEs total
| CVE-2021-31349 | 9.8 CRITICAL | Session Smart Router: Authentication Bypass Vulnerability |
| CVE-2021-31385 | 8.8 HIGH | Junos OS: J-Web: A path traversal vulnerability allows an authenticated attacker to elevat |
| CVE-2021-31372 | 8.8 HIGH | Junos OS: J-Web allows a locally authenticated attacker to escalate their privileges to ro |
| CVE-2021-31373 | 8.0 HIGH | Junos OS: SRX Series: Persistent XSS vulnerability in J-Web |
| CVE-2021-31355 | 8.0 HIGH | Junos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal |
| CVE-2021-31356 | 7.8 HIGH | Junos OS Evolved: Multiple shell-injection vulnerabilities in EVO UI wrapper scripts |
| CVE-2021-31359 | 7.8 HIGH | Junos OS and Junos OS Evolved: Local Privilege Escalation vulnerability |
| CVE-2021-31358 | 7.8 HIGH | Junos OS Evolved: shell-injection vulnerabilities in evo_sftp UI wrapper script |
| CVE-2021-31357 | 7.8 HIGH | Junos OS Evolved: shell-injection vulnerabilities in evo_tcpdump UI wrapper script |
| CVE-2021-31376 | 7.5 HIGH | Junos OS: ACX Series: Packet Forwarding Engine manager (FXPC) process crashes when process |
| CVE-2021-31379 | 7.5 HIGH | Junos OS: MX Series: MPC 7/8/9/10/11 cards with MAP-E: PFE halts when an attacker sends ma |
| CVE-2021-31374 | 7.5 HIGH | Junos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE o |
| CVE-2021-31353 | 7.5 HIGH | Junos OS and Junos OS Evolved: RPD core upon receipt of specific BGP update |
| CVE-2021-31351 | 7.5 HIGH | Junos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset |
| CVE-2021-31350 | 7.5 HIGH | Junos OS and Junos OS Evolved: Privilege escalation vulnerability in Juniper Extension Too |
| CVE-2021-31383 | 7.5 HIGH | Junos OS and Junos OS Evolved: In Point to MultiPoint (P2MP) scenarios receipt of various |
| CVE-2021-31368 | 7.5 HIGH | Junos OS: EX2300 Series, EX3400 Series, and ACX710 might become unresponsive if the out-of |
| CVE-2021-0296 | 7.4 HIGH | CTPView: HSTS not being enforced on CTPView server. |
| CVE-2021-31384 | 7.2 HIGH | Junos OS: SRX Series: Under a specific device configuration an attacker can access the dev |
| CVE-2021-31375 | 7.2 HIGH | Junos OS: Receipt of a specific BGP update may cause RPKI policy-checks to be bypassed |
Showing 20 of 42 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Junos OS
- 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-2026-33781
Junos OS: EX Series, QFX Series: In a VXLAN scenario when sp
同じベンダー: 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
JSI Virtual Lightweight Collector: Default password is not r
同じ弱点: CWE-755
- CVE-2026-23666
.NET Framework Denial of Service Vulnerability - CVE-2026-40074
SvelteKit's invalidated redirect in handle hook causes Denia - CVE-2026-28542
Huawei EMUI和Huawei HarmonyOS 安全漏洞 - CVE-2026-27195
Wasmtime is vulnerable to panic when dropping a `[Typed]Func - CVE-2026-27586
Caddy's mTLS client authentication silently fails open when
V. CVE-2021-0299へのコメント
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