It was previously published that a vulnerability in the memory management of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an authenticated, local attacker to corrupt a shared memory segment, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient access controls to a shared memory resource. An attacker could exploit this vulnerability by corrupting a shared memory segment on an affected device. A successful exploit could allow the attacker to cause the device to reload. The device will recover from the corruption upon reboot. After additional investigation it was determined that this vulnerability is not exploitable in production software. Cisco has provided software updates for this issue. This advisory is available at the following link:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tpce-rmos-mem-dos-rck56tT
It was previously published that a vulnerability in the memory management of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an authenticated, local attacker to corrupt a shared memory segment, resulting in a denial of service (DoS) condition.
This vulnerability is due to insufficient access controls to a shared memory resource. An attacker could exploit this vulnerability by corrupting a shared memory segment on an affected device. A successful exploit could allow the attacker to cause the device to reload. The device will recover from the corruption upon reboot.
After additional investigation it was determined that this vulnerability is not exploitable in production software. Cisco has provided software updates for this issue.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tpce-rmos-mem-dos-rck56tT
At the time of publication, this vulnerability affected Cisco devices if they were running a vulnerable release of Cisco TelePresence CE Software or Cisco RoomOS Software.
For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.
There are no workarounds that address this vulnerability.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
At the time of publication, the release information in the following table(s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
The left column lists Cisco software, and the right column indicates whether a release was affected by the vulnerability described in this advisory and which release included the fix for this vulnerability.
| Cisco On-Premises Software Release | First Fixed Release |
|---|---|
| Earlier than 9 | Migrate to a fixed release. |
| 9 | 9.15.8 |
| 10 | 10.8.2 |
Webex Board Series, Desk Series, and Room Series
| Cisco Cloud Managed Software Release | First Fixed Release |
|---|---|
| Earlier than RoomOS August 2021 | RoomOS August 2021 Drop |
Webex DX Series, MX Series, and SX Series
| Cisco Cloud Managed Software Release | First Fixed Release |
|---|---|
| Earlier than RoomOS November 2021 | RoomOS November 2021 Drop |
The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
This vulnerability was found during internal security testing by KY of the Cisco Advanced Security Initiatives Group (ASIG).
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
| Version | Description | Section | Status | Date |
|---|---|---|---|---|
| 1.1 | Updated the Summary section to indicate that the issue is not exploitable and changed the advisory to Informational. Updated the fixed releases. | Header, Summary, Fixed Releases | Final | 2021-OCT-15 |
| 1.0 | Initial public release. | - | Final | 2021-OCT-06 |
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