Double Free in Cisco iOS Xe Software

CVE-2018-0469

A vulnerability in the web user interface of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a double-free-in-memory handling by the affected software when specific HTTP requests are processed. An attacker could exploit this vulnerability by sending specific HTTP requests to the web user interface of the affected software. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition on an affected device. To exploit this vulnerability, the attacker must have access to the management interface of the affected software, which is typically connected to a restricted management network.

Vulnerability class: Double Free

EPSS: 0.031 (86.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

  • psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
  • psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
  • psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2018-0469?
CVE-2018-0469 is a medium-severity vulnerability in Cisco iOS Xe Software, classified under Double Free. CVSS score: 6.8/10. Published 2018-10-05.
How severe is CVE-2018-0469?
Medium severity. CVSS v3 base score is 6.8 out of 10.