Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2018-0241

A vulnerability in the UDP broadcast forwarding function of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of UDP broadcast packets that are forwarded to an IPv4 helper address. An attacker could exploit this vulnerability by sending multiple UDP broadcast packets to the affected device. An exploit could allow the attacker to cause a buffer leak on the affected device, eventually resulting in a DoS condition requiring manual intervention to recover. This vulnerability affects all Cisco IOS XR platforms running 6.3.1, 6.2.3, or earlier releases of Cisco IOS XR Software when at least one IPv4 helper address is configured on an interface of the device. Cisco Bug IDs: CSCvi35625.

Published

2018-04-19T20:29:00.877

Last Modified

2024-11-21T03:37:47.947

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.4 (HIGH)

CVSSv2 Vector

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

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

6.5

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-399
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xr 4.0.4.base Yes
Operating System cisco ios_xr 4.1.3.base Yes
Operating System cisco ios_xr 4.2.4.base Yes
Operating System cisco ios_xr 4.3.4.base Yes
Operating System cisco ios_xr 4.4.3.ce Yes
Operating System cisco ios_xr 5.0.3.ce Yes
Operating System cisco ios_xr 5.1.4.base Yes
Operating System cisco ios_xr 5.2.5.ce Yes
Operating System cisco ios_xr 5.3.4.base Yes
Operating System cisco ios_xr 5.4.3.ce Yes
Operating System cisco ios_xr 6.0.4.base Yes
Operating System cisco ios_xr 6.1.4.base Yes
Operating System cisco ios_xr 6.2.3.base Yes
Hardware cisco asr_9001 - No
Hardware cisco asr_9006 - No
Hardware cisco asr_9010 - No
Hardware cisco asr_9904 - No
Hardware cisco asr_9906 - No
Hardware cisco asr_9910 - No
Hardware cisco asr_9912 - No
Hardware cisco asr_9922 - No
References