CVE-2021-31374 — Out-of-bounds Write in Networks Junos OS

CWE-787 — Out-of-bounds Write4 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 39.99%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Juniper Networks Junos OSJuniper Networks Junos OS EvolvedJuniper Junos+1 more
Timeline
PublishedOct 19
Latest updateMay 24

Description

On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this message will create a sustained Denial of Service (DoS) condition. This issue affects both IBGP and EBGP deployments over IPv4 or IPv6. This issue affects: Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to …

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 Packages4 packages

▶CVEListV5juniper_networks/junos_os_evolved20.3 — 20.3R2-EVO
▶CVEListV5juniper_networks/junos_os17.3 — 17.3R3-S11+12
▶NVDjuniper/junos13 versions+12

🔴Vulnerability Details

2
GHSA
GHSA-jr4f-gcmh-6qhw: On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process↗2022-05-24
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CVEList
Junos OS and Junos OS Evolved: RPD crash while processing a specially crafted BGP UPDATE or KEEPALIVE message.↗2021-10-19
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📋Vendor Advisories

1
Juniper
CVE-2021-31374: On Juniper Networks Junos OS and Junos OS Evolved devices processing a specially crafted BGP UPDATE or KEEPALIVE message can lead to a routing process↗2021-10-19
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CVE-2021-31374 — Out-of-bounds Write | cvebase