PT-2015-4736 · Cisco · Cisco Ios

Published 2015-02-10 · Updated 2017-09-08 · CVE-2015-0592

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco IOS versions prior to 15.4(2)T3

Description The issue is related to improper management of kernel timers in the Zone-Based Firewall implementation, allowing remote attackers to cause a denial of service via crafted network traffic. This traffic can trigger incorrect kernel-timer handling, leading to a device reload. An attacker may need access to trusted, internal networks behind a firewall to send crafted traffic to the targeted device.

Recommendations For versions prior to 15.4(2)T3, update to a newer version that includes the fix for the kernel timer management issue in the Zone-Based Firewall feature.

Fix

DoS

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2015-0592

Affected Products

Cisco Ios

References · 6

• http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0592 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2015-0592 · Security Note
• http://tools.cisco.com/security/center/viewAlert.x?alertId=37416 · Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/100758 · Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20150210-CVE-2015-0592 · Note
• http://securitytracker.com/id/1031713 · Note