CVE-2018-0158: Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability
A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial-of-service (DoS) condition.
| Vendor | Cisco |
|---|---|
| Product | IOS Software and Cisco IOS XE Software |
| Date added to KEV | 2022-03-03 |
| Due date (BOD 22-01) | 2022-03-17 |
| Known ransomware campaign use | Unknown |
| CWE | CWE-20 |
| Required action | Apply updates per vendor instructions. |
What to do
- Identify every instance of Cisco IOS Software and Cisco IOS XE Software in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply updates per vendor instructions.
- Federal civilian agencies must act by 2022-03-17 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
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Sources
- NVD entry for CVE-2018-0158 (severity scores, if any, live there)
- CISA KEV catalog entry
- https://nvd.nist.gov/vuln/detail/CVE-2018-0158