Riskcovery

CVE-2019-1739

Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vulnerabilities

State
Published
Severity
8.6 High
Published
Mar 27, 2019
Updated
Sep 16, 2024
Reserved
Dec 6, 2018

Read the record on cve.org

Description

A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability is due to a parsing issue on DNS packets. An attacker could exploit this vulnerability by sending crafted DNS packets through routers that are running an affected version and have NBAR enabled. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.

Scores

CVSSScoreVectorSource
3.08.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco

Weaknesses

Affected Products

ProductVersions
Cisco IOS and Cisco IOS-XE SoftwareCisco
  • 3.16.0SAffected
  • 3.16.1SAffected
  • 3.16.0aSAffected
  • 3.16.1aSAffected
  • 3.16.2SAffected
  • 3.16.2aSAffected
  • 3.16.0bSAffected
  • 3.16.0cSAffected
  • 3.16.3SAffected
  • 3.16.2bSAffected
  • 3.16.3aSAffected
  • 3.16.4SAffected
  • 3.16.4aSAffected
  • 3.16.4bSAffected
  • 3.16.4gSAffected
  • 3.16.5SAffected
  • 3.16.4cSAffected
  • 3.16.4dSAffected
  • 3.16.4eSAffected
  • 3.16.5aSAffected
  • 3.17.0SAffected
  • 3.17.1SAffected
  • 3.17.2SAffected
  • 3.17.1aSAffected
  • 3.17.3SAffected
  • and 31 more versions

References

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