CVE-2018-0174Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerability

Açıklama

A vulnerability in the DHCP option 82 encapsulation functionality of 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. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuh91645.

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

Kaynaklar ve yamalar

• 103554 vdb-entryBroken LinkThird Party AdvisoryVDB Entry
• https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 Third Party AdvisoryUS Government Resource
• https://www.tenable.com/security/research/tra-2018-06 Third Party Advisory
• 1040591 vdb-entryBroken LinkThird Party AdvisoryVDB Entry
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr3 Vendor Advisory
• https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 Third Party AdvisoryUS Government Resource
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0174 US Government Resource