CVE-2021-0205
published 2021-01-15CVE-2021-0205: When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or…
PriorityP430medium5.8CVSS 3.1
AVNACLPRNUINSCCNINAL
EPSS
1.20%
64.8th percentile
When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or destination prefix, it may incorrectly match the prefix as /32, causing the filter to block unexpected traffic. This issue affects only IPv6 prefixes when used as source and destination. This issue affects MX Series devices using MS-MPC, MS-MIC or MS-SPC3 service cards with IDS service configured. This issue affects: Juniper Networks Junos OS 17.3 versions prior to 17.3R3-S10 on MX Series; 17.4 versions prior to 17.4R3-S3 on MX Series; 18.1 versions prior to 18.1R3-S11 on MX Series; 18.2 versions prior to 18.2R3-S6 on MX Series; 18.3 versions prior to 18.3R3-S4 on MX Series; 18.4 versions prior to 18.4R3-S6 on MX Series; 19.1 versions prior to 19.1R2-S2, 19.1R3-S3 on MX Series; 19.2 versions prior to 19.2R3-S1 on MX Series; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1 on MX Series; 19.4 versions prior to 19.4R3 on MX Series; 20.1 versions prior to 20.1R2 on MX Series; 20.2 versions prior to 20.2R2 on MX Series;
Affected
26 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos_os | — | — |
| juniper | mx_series | — | — |
| juniper_networks | junos_os | >= 17.3 < 17.3R3-S10 | 17.3R3-S10 |
| juniper_networks | junos_os | >= 17.4 < 17.4R3-S3 | 17.4R3-S3 |
| juniper_networks | junos_os | >= 18.1 < 18.1R3-S11 | 18.1R3-S11 |
| juniper_networks | junos_os | >= 18.2 < 18.2R3-S6 | 18.2R3-S6 |
| juniper_networks | junos_os | >= 18.3 < 18.3R3-S4 | 18.3R3-S4 |
| juniper_networks | junos_os | >= 18.4 < 18.4R3-S6 | 18.4R3-S6 |
| juniper_networks | junos_os | >= 19.1 < 19.1R2-S2, 19.1R3-S3 | 19.1R2-S2, 19.1R3-S3 |
| juniper_networks | junos_os | >= 19.2 < 19.2R3-S1 | 19.2R3-S1 |
| juniper_networks | junos_os | >= 19.3 < 19.3R2-S5, 19.3R3-S1 | 19.3R2-S5, 19.3R3-S1 |
| juniper_networks | junos_os | >= 19.4 < 19.4R3 | 19.4R3 |
| juniper_networks | junos_os | >= 20.1 < 20.1R2 | 20.1R2 |
CVSS provenance
nvdv3.15.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
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GHSA
GHSA-pjq4-grjv-rg5j: When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or d
ghsa_unreviewed·2022-05-24
CVE-2021-0205 [MEDIUM] GHSA-pjq4-grjv-rg5j: When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or d
When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or destination prefix, it may incorrectly match the prefix as /32, causing the filter to block unexpected traffic. This issue affects only IPv6 prefixes when used as source and destination. This issue affects MX Series devices using MS-MPC, MS-MIC or MS-SPC3 service cards with IDS service configured. This issue affects: Juniper Networks Junos OS 17.3 versions prior to 17.3R3-S10 on MX Series; 17.4 versions prior to 17.4R3-S3 on MX Series; 18.1 versions prior to 18.1R3-S11 on MX Series; 18.2 versions prior to 18.2R3-S6 on MX Series; 18.3 versions prior to 18.3R3-S4 on MX Series; 18.4 versions prior to 18.4R3-S6 on MX Series; 19.1 versions prior to
Juniper
CVE-2021-0205: When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or d
vendor_juniper·2021-01-15·CVSS 5.8
CVE-2021-0205 [MEDIUM] CWE-284 CVE-2021-0205: When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or d
CVE-2021-0205: When the "Intrusion Detection Service" (IDS) feature is configured on Juniper Networks MX series with a dynamic firewall filter using IPv6 source or destination prefix, it may incorrectly match the prefix as /32, causing the filter to block unexpected traffic. This issue affects only IPv6 prefixes when used as source and destination. This issue affects MX Series devices using MS-MPC, MS-MIC or MS-SPC3 service cards with IDS service configured. This issue affects: Juniper Networks Junos OS 17.3 versions prior to 17.3R3-S10 on MX Series; 17.4 versions prior to 17.4R3-S3 on MX Series; 18.1 versions prior to 18.1R3-S11 on MX Series; 18.2 versions prior to 18.2R3-S6 on MX Series; 18.3 versions prior to 18.3R3-S4 on MX Series; 18.4 versions prior to 18.4R3-S6 on MX Series; 19.1 ve
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-01-15
Published