Cisco IOS XR Software Protocol Independent Multicast Denial of Service Vulnerability (Cisco Cisco IOS XR Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.64 % · percentile 86 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Protocol Independent Multicast (PIM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the PIM process to restart, resulting in a denial of service condition on an affected device. The vulnerability is due to the incorrect processing of crafted AutoRP packets. An attacker could exploit this vulnerability by sending crafted packets to port UDP 496 on a reachable IP address on the device. A successful exploit could allow the attacker to cause the PIM process to restart. Software versions prior to 6.2.3, 6.3.2, 6.4.0, and 6.5.1 are affected.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L | cisco |
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.0 | HIGH 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10269
- GCVE · GCVE-0-2019-1712
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*< 6.2.3cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*≥ 6.2.25 < 6.3.2cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*≥ 6.3.3 < 6.4.0cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*≥ 6.4.1 < 6.5.1
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco IOS XR Software | affected unspecified < 6.2.3 ; affected unspecified < 6.3.2 ; affected unspecified < 6.4.0 ; affected unspecified < 6.5.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |