Riskcovery

CVE-2024-20309

State
Published
Severity
5.6 Medium
Published
Mar 27, 2024
Updated
Aug 9, 2024
Reserved
Nov 8, 2023

Read the record on cve.org

Description

A vulnerability in auxiliary asynchronous port (AUX) functions of Cisco IOS XE Software could allow an authenticated, local attacker to cause an affected device to reload or stop responding. This vulnerability is due to the incorrect handling of specific ingress traffic when flow control hardware is enabled on the AUX port. An attacker could exploit this vulnerability by reverse telnetting to the AUX port and sending specific data after connecting. A successful exploit could allow the attacker to cause the device to reset or stop responding, resulting in a denial of service (DoS) condition.

Scores

CVSSScoreVectorSource
3.15.6 MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-828 Signal Handler with Functionality that is not Asynchronous-Safe

Affected Products

ProductVersions
Cisco IOS XE SoftwareCisco
  • 3.7.0SAffected
  • 3.7.1SAffected
  • 3.7.2SAffected
  • 3.7.3SAffected
  • 3.7.4SAffected
  • 3.7.5SAffected
  • 3.7.6SAffected
  • 3.7.7SAffected
  • 3.7.4aSAffected
  • 3.7.2tSAffected
  • 3.7.0bSAffected
  • 3.7.1aSAffected
  • 3.8.0SAffected
  • 3.8.1SAffected
  • 3.8.2SAffected
  • 3.9.1SAffected
  • 3.9.0SAffected
  • 3.9.2SAffected
  • 3.9.1aSAffected
  • 3.9.0aSAffected
  • 3.2.0SEAffected
  • 3.2.1SEAffected
  • 3.2.2SEAffected
  • 3.2.3SEAffected
  • 3.3.0SEAffected
  • and 318 more versions

References

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