Improper input validation in Cisco iOS

CVE-2013-5479

The DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3, when NAT is used, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream, aka Bug ID CSCtn53730.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.019 (77.4th percentile) — read the EPSS interpretation.

Affected products

  • Cisco Ios — versions 12.2, 15.0, 15.1
  • N/a — versions n/a

Weakness classification (CWE)

References