CVE-2019-12654: Cisco IOS and IOS XE Software Session Initiation Protocol Denial of Service Vulnerability
First published: Wed Sep 25 2019(Updated: )
A vulnerability in the common Session Initiation Protocol (SIP) library of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on an internal data structure. An attacker could exploit this vulnerability by sending a sequence of malicious SIP messages to an affected device. An exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the iosd process. This triggers a reload of the device.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE | =15.6\(1\)s4.2 | |
| Cisco IOS XE | =16.3.8 | |
| Cisco IOS XE | =16.9.1 | |
| Cisco 1000 Integrated Services Router | ||
| Cisco 1100 Integrated Services Router | ||
| Cisco 4000 Integrated Services Router | ||
| Cisco 4221 Integrated Services Router | ||
| Cisco 4321 Integrated Services Router | ||
| Cisco 4331 Integrated Services Router | ||
| Cisco 4351 Integrated Services Router | ||
| Cisco 4431 Integrated Services Router | ||
| Cisco 4451-x Integrated Services Router | ||
| Cisco ASR 1000 | ||
| Cisco Asr 1001-hx | ||
| Cisco Asr 1001-x | ||
| Cisco Asr 1002-hx | ||
| Cisco Asr 1002-x | ||
| Cisco Cloud Services Router 1000v | ||
| Cisco Integrated Services Virtual Router |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this Cisco IOS and IOS XE SIP library vulnerability?
The vulnerability ID is CVE-2019-12654.
What is the severity of CVE-2019-12654?
The severity of CVE-2019-12654 is high, with a severity score of 7.5.
How does CVE-2019-12654 affect Cisco IOS and IOS XE Software?
CVE-2019-12654 could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition.
Which versions of Cisco IOS XE are affected by CVE-2019-12654?
Versions 15.6(1)s4.2, 16.3.8, and 16.9.1 of Cisco IOS XE are affected by CVE-2019-12654.
How can I fix the vulnerability identified in CVE-2019-12654?
To fix the vulnerability, Cisco recommends upgrading to a fixed software release.
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- agent/title
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/references
- agent/softwarecombine
- agent/author
- agent/type
- agent/tags
- agent/event
- agent/description
- agent/first-publish-date
- vendor/cisco
- canonical/cisco ios xe
- version/cisco ios xe/15.6\(1\)s4.2
- version/cisco ios xe/16.3.8
- version/cisco ios xe/16.9.1
- canonical/cisco 1000 integrated services router
- canonical/cisco 1100 integrated services router
- canonical/cisco 4000 integrated services router
- canonical/cisco 4221 integrated services router
- canonical/cisco 4321 integrated services router
- canonical/cisco 4331 integrated services router
- canonical/cisco 4351 integrated services router
- canonical/cisco 4431 integrated services router
- canonical/cisco 4451-x integrated services router
- canonical/cisco asr 1000
- canonical/cisco asr 1001-hx
- canonical/cisco asr 1001-x
- canonical/cisco asr 1002-hx
- canonical/cisco asr 1002-x
- canonical/cisco cloud services router 1000v
- canonical/cisco integrated services virtual router