CVE-2021-0209 — Access of Uninitialized Pointer in Networks Junos OS Evolved

CWE-824 — Access of Uninitialized Pointer4 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 77.25%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Juniper Networks Junos OS EvolvedJuniper Junos OS Evolved
Timeline
PublishedJan 15
Latest updateMay 24

Description

In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper …

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5juniper_networks/junos_os_evolved19.4 — 19.4R2-S2-EVO+1
▶NVDjuniper/junos_os_evolved19.4, 20.1+1

🔴Vulnerability Details

2
GHSA
GHSA-gp8q-5m2c-vprm: In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointe↗2022-05-24
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CVEList
Junos OS Evolved: Receipt of certain valid BGP update packets from BGP peers may cause RPD to core when using REGEX.↗2021-01-15
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📋Vendor Advisories

1
Juniper
CVE-2021-0209: In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointe↗2021-01-15
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CVE-2021-0209 — Access of Uninitialized Pointer | cvebase