CVE-2021-0206 — NULL Pointer Dereference in Networks Junos OS

CWE-476 — NULL Pointer Dereference4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 39.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Juniper Networks Junos OSJuniper Junos
Timeline
PublishedJan 15
Latest updateMay 24

Description

A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engine (PFE) to crash and restart, resulting in a Denial of Service (DoS). By continuously sending these specific packets, an attacker can repeatedly disable the PFE causing a sustained Denial of Service (DoS). This issue only affects Juniper Networks NFX Series, SRX Series platforms when SSL Proxy is configured. This issue affects Juniper Networks Juno…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5juniper_networks/junos_os18.3R1 — 18.3*+4
▶NVDjuniper/junos5 versions+4

🔴Vulnerability Details

2
GHSA
GHSA-9jxc-x8cc-f2vm: A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engin↗2022-05-24
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CVEList
Junos OS: NFX Series, SRX Series: PFE may crash upon receipt of specific packet when SSL Proxy is configured.↗2021-01-15
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📋Vendor Advisories

1
Juniper
CVE-2021-0206: A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engin↗2021-01-15
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CVE-2021-0206 — NULL Pointer Dereference | cvebase