CVE-2022-22195: Junos OS Evolved: Specific packets reaching the RE lead to a counter overflow and eventually a crash
First published: Wed Apr 13 2022(Updated: )
An Improper Update of Reference Count vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to trigger a counter overflow, eventually causing a Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S1-EVO; 21.1 versions prior to 21.1R3-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Junos Os Evolved | <20.4 | |
| Juniper Junos Os Evolved | =20.4-r1 | |
| Juniper Junos Os Evolved | =20.4-r1-s1 | |
| Juniper Junos Os Evolved | =20.4-r1-s2 | |
| Juniper Junos Os Evolved | =20.4-r2 | |
| Juniper Junos Os Evolved | =20.4-r2-s1 | |
| Juniper Junos Os Evolved | =20.4-r2-s2 | |
| Juniper Junos Os Evolved | =20.4-r2-s3 | |
| Juniper Junos Os Evolved | =20.4-r3 | |
| Juniper Junos Os Evolved | =21.1-r1 | |
| Juniper Junos Os Evolved | =21.1-r1-s1 | |
| Juniper Junos Os Evolved | =21.1-r2 | |
| Juniper Junos Os Evolved | =21.2-r1 | |
| Juniper Junos Os Evolved | =21.2-r1-s1 | |
| Juniper Junos Os Evolved | =21.2-r2 | |
| Juniper Junos Os Evolved | =21.3-r1 | |
| Juniper Junos Os Evolved | =21.3-r1-s1 |
Remedy
The following software releases have been updated to resolve this specific issue: 20.4R3-S1-EVO, 21.1R3-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and all subsequent releases.
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Reference Links
- collector/nvd-index
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/severity
- agent/author
- agent/weakness
- agent/title
- agent/last-modified-date
- agent/references
- agent/softwarecombine
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- vendor/juniper
- canonical/juniper junos os evolved
- version/juniper junos os evolved/20.4-r1
- version/juniper junos os evolved/20.4-r1-s1
- version/juniper junos os evolved/20.4-r1-s2
- version/juniper junos os evolved/20.4-r2
- version/juniper junos os evolved/20.4-r2-s1
- version/juniper junos os evolved/20.4-r2-s2
- version/juniper junos os evolved/20.4-r2-s3
- version/juniper junos os evolved/20.4-r3
- version/juniper junos os evolved/21.1-r1
- version/juniper junos os evolved/21.1-r1-s1
- version/juniper junos os evolved/21.1-r2
- version/juniper junos os evolved/21.2-r1
- version/juniper junos os evolved/21.2-r1-s1
- version/juniper junos os evolved/21.2-r2
- version/juniper junos os evolved/21.3-r1
- version/juniper junos os evolved/21.3-r1-s1