CVE-2024-20309 — Cisco / Cisco IOS XE Software

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Cisco / Cisco IOS XE Software	affected 3.7.0S; affected 3.7.1S; affected 3.7.2S; affected 3.7.3S; affected 3.7.4S; affected 3.7.5S; affected 3.7.6S; affected 3.7.7S; affected 3.7.4aS; affected 3.7.2tS; affected 3.7.0bS; affected 3.7.1aS; affected 3.8.0S; affected 3.8.1S; affected 3.8.2S; affected 3.9.1S; affected 3.9.0S; affected 3.9.2S; affected 3.9.1aS; affected 3.9.0aS; affected 3.2.0SE; affected 3.2.1SE; affected 3.2.2SE; affected 3.2.3SE; affected 3.3.0SE; affected 3.3.1SE; affected 3.3.2SE; affected 3.3.3SE; affected 3.3.4SE; affected 3.3.5SE; affected 3.10.0S; affected 3.10.1S; affected 3.10.2S; affected 3.10.3S; affected 3.10.4S; affected 3.10.5S; affected 3.10.6S; affected 3.10.2tS; affected 3.10.7S; affected 3.10.1xbS; affected 3.10.8S; affected 3.10.8aS; affected 3.10.9S; affected 3.10.10S; affected 3.11.1S; affected 3.11.2S; affected 3.11.0S; affected 3.11.3S; affected 3.11.4S; affected 3.12.0S; affected 3.12.1S; affected 3.12.2S; affected 3.12.3S; affected 3.12.0aS; affected 3.12.4S; affected 3.13.0S; affected 3.13.1S; affected 3.13.2S; affected 3.13.3S; affected 3.13.4S; affected 3.13.5S; affected 3.13.2aS; affected 3.13.0aS; affected 3.13.5aS; affected 3.13.6S; affected 3.13.7S; affected 3.13.6aS; affected 3.13.7aS; affected 3.13.8S; affected 3.13.9S; affected 3.13.10S; affected 3.6.2aE; affected 3.6.2E; affected 3.6.5bE; affected 3.6.7bE; affected 3.6.9E; affected 3.6.10E; affected 3.14.0S; affected 3.14.1S; affected 3.14.2S; affected 3.14.3S; affected 3.14.4S; affected 3.15.0S; affected 3.15.1S; affected 3.15.2S; affected 3.15.1cS; affected 3.15.3S; affected 3.15.4S; affected 3.3.0SQ; affected 3.3.1SQ; affected 3.4.0SQ; affected 3.4.1SQ; affected 3.5.0SQ; affected 3.5.1SQ; affected 3.5.2SQ; affected 3.5.3SQ; affected 3.5.4SQ; affected 3.5.5SQ; affected 3.5.6SQ; affected 3.5.7SQ; affected 3.5.8SQ; affected 3.16.0S; affected 3.16.1S; affected 3.16.1aS; affected 3.16.2S; affected 3.16.2aS; affected 3.16.0cS; affected 3.16.3S; affected 3.16.2bS; affected 3.16.3aS; affected 3.16.4S; affected 3.16.4aS; affected 3.16.4bS; affected 3.16.5S; affected 3.16.4dS; affected 3.16.6S; affected 3.16.7S; affected 3.16.6bS; affected 3.16.7aS; affected 3.16.7bS; affected 3.16.8S; affected 3.16.9S; affected 3.16.10S; affected 3.17.0S; affected 3.17.1S; affected 3.17.2S; affected 3.17.1aS; affected 3.17.3S; affected 3.17.4S; affected 16.1.1; affected 16.1.2; affected 16.1.3; affected 16.2.1; affected 16.2.2; affected 16.3.1; affected 16.3.2; affected 16.3.3; affected 16.3.1a; affected 16.3.4; affected 16.3.5; affected 16.3.5b; affected 16.3.6; affected 16.3.7; affected 16.3.8; affected 16.3.9; affected 16.3.10; affected 16.3.11; affected 16.4.1; affected 16.4.2; affected 16.4.3; affected 16.5.1; affected 16.5.1a; affected 16.5.1b; affected 16.5.2; affected 16.5.3; affected 3.18.0aS; affected 3.18.0S; affected 3.18.1S; affected 3.18.2S; affected 3.18.3S; affected 3.18.4S; affected 3.18.0SP; affected 3.18.1SP; affected 3.18.1aSP; affected 3.18.1bSP; affected 3.18.1cSP; affected 3.18.2SP; affected 3.18.2aSP; affected 3.18.3SP; affected 3.18.4SP; affected 3.18.3aSP; affected 3.18.3bSP; affected 3.18.5SP; affected 3.18.6SP; affected 3.18.7SP; affected 3.18.8aSP; affected 3.18.9SP; affected 16.6.1; affected 16.6.2; affected 16.6.3; affected 16.6.4; affected 16.6.5; affected 16.6.4a; affected 16.6.5a; affected 16.6.6; affected 16.6.7; affected 16.6.8; affected 16.6.9; affected 16.6.10; affected 16.7.1; affected 16.7.1a; affected 16.7.1b; affected 16.7.2; affected 16.7.3; affected 16.7.4; affected 16.8.1; affected 16.8.1a; affected 16.8.1b; affected 16.8.1s; affected 16.8.1c; affected 16.8.1d; affected 16.8.2; affected 16.8.1e; affected 16.8.3; affected 16.9.1; affected 16.9.2; affected 16.9.1a; affected 16.9.1b; affected 16.9.1s; affected 16.9.3; affected 16.9.4; affected 16.9.3a; affected 16.9.5; affected 16.9.5f; affected 16.9.6; affected 16.9.7; affected 16.9.8; affected 16.10.1; affected 16.10.1a; affected 16.10.1b; affected 16.10.1s; affected 16.10.1c; affected 16.10.1e; affected 16.10.1d; affected 16.10.2; affected 16.10.1f; affected 16.10.1g; affected 16.10.3; affected 16.11.1; affected 16.11.1a; affected 16.11.1b; affected 16.11.2; affected 16.11.1s; affected 16.12.1; affected 16.12.1s; affected 16.12.1a; affected 16.12.1c; affected 16.12.1w; affected 16.12.2; affected 16.12.1y; affected 16.12.2a; affected 16.12.3; affected 16.12.8; affected 16.12.2s; affected 16.12.1x; affected 16.12.1t; affected 16.12.4; affected 16.12.3s; affected 16.12.3a; affected 16.12.4a; affected 16.12.5; affected 16.12.6; affected 16.12.1z1; affected 16.12.5a; affected 16.12.5b; affected 16.12.1z2; affected 16.12.6a; affected 16.12.7; affected 16.12.9; affected 16.12.10; affected 16.12.10a; affected 17.1.1; affected 17.1.1a; affected 17.1.1s; affected 17.1.1t; affected 17.1.3; affected 17.2.1; affected 17.2.1r; affected 17.2.1a; affected 17.2.1v; affected 17.2.2; affected 17.2.3; affected 17.3.1; affected 17.3.2; affected 17.3.3; affected 17.3.1a; affected 17.3.1w; affected 17.3.2a; affected 17.3.1x; affected 17.3.1z; affected 17.3.4; affected 17.3.5; affected 17.3.4a; affected 17.3.6; affected 17.3.4b; affected 17.3.4c; affected 17.3.5a; affected 17.3.5b; affected 17.3.7; affected 17.3.8; affected 17.3.8a; affected 17.4.1; affected 17.4.2; affected 17.4.1a; affected 17.4.1b; affected 17.4.2a; affected 17.5.1; affected 17.5.1a; affected 17.6.1; affected 17.6.2; affected 17.6.1w; affected 17.6.1a; affected 17.6.1x; affected 17.6.3; affected 17.6.1y; affected 17.6.1z; affected 17.6.3a; affected 17.6.4; affected 17.6.1z1; affected 17.6.5; affected 17.6.6; affected 17.6.6a; affected 17.6.5a; affected 17.7.1; affected 17.7.1a; affected 17.7.1b; affected 17.7.2; affected 17.10.1; affected 17.10.1a; affected 17.10.1b; affected 17.8.1; affected 17.8.1a; affected 17.9.1; affected 17.9.1w; affected 17.9.2; affected 17.9.1a; affected 17.9.1x; affected 17.9.1y; affected 17.9.3; affected 17.9.2a; affected 17.9.1x1; affected 17.9.3a; affected 17.9.4; affected 17.9.1y1; affected 17.9.4a; affected 17.11.1; affected 17.11.1a; affected 17.12.1; affected 17.12.1w; affected 17.12.1a; affected 17.12.2; affected 17.12.2a; affected 17.11.99SW

Vendor / product

Versions

Cisco / Cisco IOS XE Software

affected 3.7.0S; affected 3.7.1S; affected 3.7.2S; affected 3.7.3S; affected 3.7.4S; affected 3.7.5S; affected 3.7.6S; affected 3.7.7S; affected 3.7.4aS; affected 3.7.2tS; affected 3.7.0bS; affected 3.7.1aS; affected 3.8.0S; affected 3.8.1S; affected 3.8.2S; affected 3.9.1S; affected 3.9.0S; affected 3.9.2S; affected 3.9.1aS; affected 3.9.0aS; affected 3.2.0SE; affected 3.2.1SE; affected 3.2.2SE; affected 3.2.3SE; affected 3.3.0SE; affected 3.3.1SE; affected 3.3.2SE; affected 3.3.3SE; affected 3.3.4SE; affected 3.3.5SE; affected 3.10.0S; affected 3.10.1S; affected 3.10.2S; affected 3.10.3S; affected 3.10.4S; affected 3.10.5S; affected 3.10.6S; affected 3.10.2tS; affected 3.10.7S; affected 3.10.1xbS; affected 3.10.8S; affected 3.10.8aS; affected 3.10.9S; affected 3.10.10S; affected 3.11.1S; affected 3.11.2S; affected 3.11.0S; affected 3.11.3S; affected 3.11.4S; affected 3.12.0S; affected 3.12.1S; affected 3.12.2S; affected 3.12.3S; affected 3.12.0aS; affected 3.12.4S; affected 3.13.0S; affected 3.13.1S; affected 3.13.2S; affected 3.13.3S; affected 3.13.4S; affected 3.13.5S; affected 3.13.2aS; affected 3.13.0aS; affected 3.13.5aS; affected 3.13.6S; affected 3.13.7S; affected 3.13.6aS; affected 3.13.7aS; affected 3.13.8S; affected 3.13.9S; affected 3.13.10S; affected 3.6.2aE; affected 3.6.2E; affected 3.6.5bE; affected 3.6.7bE; affected 3.6.9E; affected 3.6.10E; affected 3.14.0S; affected 3.14.1S; affected 3.14.2S; affected 3.14.3S; affected 3.14.4S; affected 3.15.0S; affected 3.15.1S; affected 3.15.2S; affected 3.15.1cS; affected 3.15.3S; affected 3.15.4S; affected 3.3.0SQ; affected 3.3.1SQ; affected 3.4.0SQ; affected 3.4.1SQ; affected 3.5.0SQ; affected 3.5.1SQ; affected 3.5.2SQ; affected 3.5.3SQ; affected 3.5.4SQ; affected 3.5.5SQ; affected 3.5.6SQ; affected 3.5.7SQ; affected 3.5.8SQ; affected 3.16.0S; affected 3.16.1S; affected 3.16.1aS; affected 3.16.2S; affected 3.16.2aS; affected 3.16.0cS; affected 3.16.3S; affected 3.16.2bS; affected 3.16.3aS; affected 3.16.4S; affected 3.16.4aS; affected 3.16.4bS; affected 3.16.5S; affected 3.16.4dS; affected 3.16.6S; affected 3.16.7S; affected 3.16.6bS; affected 3.16.7aS; affected 3.16.7bS; affected 3.16.8S; affected 3.16.9S; affected 3.16.10S; affected 3.17.0S; affected 3.17.1S; affected 3.17.2S; affected 3.17.1aS; affected 3.17.3S; affected 3.17.4S; affected 16.1.1; affected 16.1.2; affected 16.1.3; affected 16.2.1; affected 16.2.2; affected 16.3.1; affected 16.3.2; affected 16.3.3; affected 16.3.1a; affected 16.3.4; affected 16.3.5; affected 16.3.5b; affected 16.3.6; affected 16.3.7; affected 16.3.8; affected 16.3.9; affected 16.3.10; affected 16.3.11; affected 16.4.1; affected 16.4.2; affected 16.4.3; affected 16.5.1; affected 16.5.1a; affected 16.5.1b; affected 16.5.2; affected 16.5.3; affected 3.18.0aS; affected 3.18.0S; affected 3.18.1S; affected 3.18.2S; affected 3.18.3S; affected 3.18.4S; affected 3.18.0SP; affected 3.18.1SP; affected 3.18.1aSP; affected 3.18.1bSP; affected 3.18.1cSP; affected 3.18.2SP; affected 3.18.2aSP; affected 3.18.3SP; affected 3.18.4SP; affected 3.18.3aSP; affected 3.18.3bSP; affected 3.18.5SP; affected 3.18.6SP; affected 3.18.7SP; affected 3.18.8aSP; affected 3.18.9SP; affected 16.6.1; affected 16.6.2; affected 16.6.3; affected 16.6.4; affected 16.6.5; affected 16.6.4a; affected 16.6.5a; affected 16.6.6; affected 16.6.7; affected 16.6.8; affected 16.6.9; affected 16.6.10; affected 16.7.1; affected 16.7.1a; affected 16.7.1b; affected 16.7.2; affected 16.7.3; affected 16.7.4; affected 16.8.1; affected 16.8.1a; affected 16.8.1b; affected 16.8.1s; affected 16.8.1c; affected 16.8.1d; affected 16.8.2; affected 16.8.1e; affected 16.8.3; affected 16.9.1; affected 16.9.2; affected 16.9.1a; affected 16.9.1b; affected 16.9.1s; affected 16.9.3; affected 16.9.4; affected 16.9.3a; affected 16.9.5; affected 16.9.5f; affected 16.9.6; affected 16.9.7; affected 16.9.8; affected 16.10.1; affected 16.10.1a; affected 16.10.1b; affected 16.10.1s; affected 16.10.1c; affected 16.10.1e; affected 16.10.1d; affected 16.10.2; affected 16.10.1f; affected 16.10.1g; affected 16.10.3; affected 16.11.1; affected 16.11.1a; affected 16.11.1b; affected 16.11.2; affected 16.11.1s; affected 16.12.1; affected 16.12.1s; affected 16.12.1a; affected 16.12.1c; affected 16.12.1w; affected 16.12.2; affected 16.12.1y; affected 16.12.2a; affected 16.12.3; affected 16.12.8; affected 16.12.2s; affected 16.12.1x; affected 16.12.1t; affected 16.12.4; affected 16.12.3s; affected 16.12.3a; affected 16.12.4a; affected 16.12.5; affected 16.12.6; affected 16.12.1z1; affected 16.12.5a; affected 16.12.5b; affected 16.12.1z2; affected 16.12.6a; affected 16.12.7; affected 16.12.9; affected 16.12.10; affected 16.12.10a; affected 17.1.1; affected 17.1.1a; affected 17.1.1s; affected 17.1.1t; affected 17.1.3; affected 17.2.1; affected 17.2.1r; affected 17.2.1a; affected 17.2.1v; affected 17.2.2; affected 17.2.3; affected 17.3.1; affected 17.3.2; affected 17.3.3; affected 17.3.1a; affected 17.3.1w; affected 17.3.2a; affected 17.3.1x; affected 17.3.1z; affected 17.3.4; affected 17.3.5; affected 17.3.4a; affected 17.3.6; affected 17.3.4b; affected 17.3.4c; affected 17.3.5a; affected 17.3.5b; affected 17.3.7; affected 17.3.8; affected 17.3.8a; affected 17.4.1; affected 17.4.2; affected 17.4.1a; affected 17.4.1b; affected 17.4.2a; affected 17.5.1; affected 17.5.1a; affected 17.6.1; affected 17.6.2; affected 17.6.1w; affected 17.6.1a; affected 17.6.1x; affected 17.6.3; affected 17.6.1y; affected 17.6.1z; affected 17.6.3a; affected 17.6.4; affected 17.6.1z1; affected 17.6.5; affected 17.6.6; affected 17.6.6a; affected 17.6.5a; affected 17.7.1; affected 17.7.1a; affected 17.7.1b; affected 17.7.2; affected 17.10.1; affected 17.10.1a; affected 17.10.1b; affected 17.8.1; affected 17.8.1a; affected 17.9.1; affected 17.9.1w; affected 17.9.2; affected 17.9.1a; affected 17.9.1x; affected 17.9.1y; affected 17.9.3; affected 17.9.2a; affected 17.9.1x1; affected 17.9.3a; affected 17.9.4; affected 17.9.1y1; affected 17.9.4a; affected 17.11.1; affected 17.11.1a; affected 17.12.1; affected 17.12.1w; affected 17.12.1a; affected 17.12.2; affected 17.12.2a; affected 17.11.99SW

CWE

CWE-828

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aux-333WBz8f

ADP enrichment

CVE

No English description supplied.

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aux-333WBz8f

CISA-ADP

No English description supplied.

No references supplied.