CVE-2024-20312
Cisco IOS
At a glance
- Source
- NVD
- EPSS
- EPSS 0.26 % · percentile 17 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Intermediate System-to-Intermediate System (IS-IS) protocol of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation when parsing an ingress IS-IS packet. An attacker could exploit this vulnerability by sending a crafted IS-IS packet to an affected device after forming an adjacency. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. Note: The IS-IS protocol is a routing protocol. To exploit this vulnerability, an attacker must be Layer 2-adjacent to the affected device and have formed an adjacency.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 7.4 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
European references
- ENISA EUVD · EUVD-2024-18027
- GCVE · GCVE-0-2024-20312
CERT-FR advisories
- CERTFR-2024-AVI-0260 — Multiples vulnérabilités dans les produits Cisco · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:ios:15.0\(1\)ex:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(1\)sy:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(1\)sy1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(1\)sy2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(1\)sy3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(1\)sy4:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(1\)sy5:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(1\)sy6:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg4:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg5:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg6:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg7:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sg8:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy4:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy4a:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy5:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy6:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy7:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy8:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy9:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy10:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy11:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy12:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy13:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy14:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy15:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.1\(2\)sy16:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.2\(1\)e:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.2\(1\)e1:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.2\(1\)e2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.2\(1\)e3:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:15.2\(1\)ey:*:*:*:*:*:*:*- +771 more
Affected products
| Product | Versions |
|---|---|
| Cisco · IOS | affected 15.2(1)S ; affected 15.2(2)S ; affected 15.2(1)S1 ; affected 15.2(4)S ; affected 15.2(1)S2 ; affected 15.2(2)S1 |
| Cisco · Cisco IOS XE Software | affected 3.7.0S ; affected 3.7.1S ; affected 3.7.2S ; affected 3.7.3S ; affected 3.7.4S ; affected 3.7.5S |
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 |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| 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 |