Lexmark Security Advisory:
| Revision: | 1.0 |
| Last update: | 30 March 1016 |
| Public Release Date: | 7 April 2016 |
Summary
Out of service maintenance memory erase may fail to erase memory. Under certain circumstances, some Lexmark printers will fail to erase stored information when requested.
References
CVE: CVE-2016-3145
Details
Lexmark recommends that when a device is being taken out of service, or being de-commissioned, that the non-volatile memory of the device be erased via the "Device" >"Maintenance" >"Erase Printer Memory" and "Device" >"Maintenance" >"Erase Hard Disk" functions. Under certain circumstances, these functions may fail, causing information to remain on the device. A limited number of products are affected; upgrading the firmware will correct the problem.
| CVSSv3 Base Score: | 4.2 (AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N) |
Impact Subscore: | 3.6 |
Exploitability Subscore: | 0.6 |
| CVSSv2 Base Score: | 4.6 (AV:L/AC:L/AU:S/C:C/I:N/A:N) |
Impact Subscore: | 6.9 |
Exploitability Subscore: | 3.1 |
CVSSv3 scores are calculated in accordance with CVSS version 3.0 (https://www.first.org/cvss/user-guide) CVSSv2 scores are calculated in accordance with CVSS version 2.0 (https://www.first.org/cvss/v2/guide)
Impact
This vulnerability can lead to the disclosure of configuration information and user data on the affected device..
Affected Products
To determine a devices firmware level, select the "Settings" >"Reports" > "Menu Setting Page" menu item from the operator panel. If the firmware level listed under "Device Information" matches any level under "Affected Releases", then upgrade to a "Fixed Release".
| Lexmark Models | Affected Releases | Fixed Releases |
| CX820de, CX820dtfe | PP.021.062 and previous | PP.021.063 and later |
| XC6152de, XC6152dtfe | PP.021.062 and previous | PP.021.063 and later |
| CX825de, CX825dte, CX825dtfe | PP.021.062 and previous | PP.021.063 and later |
| XC8155de, XC8155dte | PP.021.062 and previous | PP.021.063 and later |
| CX860de, CX860dte, CX860dtfe | PP.021.062 and previous | PP.021.063 and later |
| XC8160de, XC8160dte | PP.021.062 and previous | PP.021.063 and later |
| CS820de, CS820dte, CS820dtfe | YK.021.057 and previous | YK.021.063 and later |
| C6160 | YK.021.062 and previous | YK.021.063 and later |
| CS720de, CS720dte | CB.021.062 and previous | CB.021.063 and later |
| CS725de, CS725dte | CB.021.062 and previous | CB.021.063 and later |
| C4150 | CB.021.062 and previous | CB.021.063 and later |
| CX725de, CX725dhe, CX725dthe | ATL.021.062 and previous | ATL.021.063 and later |
| XC4150 | ATL.021.062 and previous | ATL.021.063 and later |
Obtaining Updated Software
To obtain firmware that resolves this issue, or if you have special code, please contact Lexmark's Technical Support Center at http://support.lexmark.com to find your local support center.
Workarounds
Lexmark recommends updating firmware to address this issue.
Exploitation and Public Announcements
Lexmark is not aware of any malicious use against Lexmark products of the vulnerability described in this advisory.
Status of this Notice:
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND IS PROVIDED WITHOUT ANY EXPRESS OR IMPLIED GUARANTEE OR WARRANTY WHATSOEVER, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR PURPOSE. LEXMARK RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
Distribution
This advisory is posted on Lexmark’s web site at http://support.lexmark.com/alerts.
Future updates to this document will be on Lexmark’s web site at the same location.
Revision History
| Revision | Date | Reason |
| 1.0 | 7 – April 2016 | Initial Public Release |
LEGACY ID: TE760