Scientific Linux Security Update : pcsc-lite on SL6.x i386/x86_64

Medium Nessus Plugin ID 64956


The remote Scientific Linux host is missing one or more security updates.


A stack-based buffer overflow flaw was found in the way pcsc-lite decoded certain attribute values of Answer-to-Reset (ATR) messages. A local attacker could use this flaw to execute arbitrary code with the privileges of the user running the pcscd daemon (root, by default), by inserting a specially crafted smart card. (CVE-2010-4531)

This update also fixes the following bugs :

- Due to an error in the init script, the chkconfig utility did not automatically place the pcscd init script after the start of the HAL daemon. Consequently, the pcscd service did not start automatically at boot time. With this update, the pcscd init script has been changed to explicitly start only after HAL is up, thus fixing this bug.

- Because the chkconfig settings and the startup files in the /etc/rc.d/ directory were not changed during the update described in the SLBA-2012:0990 advisory, the user had to update the chkconfig settings manually to fix the problem. Now, the chkconfig settings and the startup files in the /etc/rc.d/ directory are automatically updated as expected.

- Previously, the SCardGetAttrib() function did not work properly and always returned the 'SCARD_E_INSUFFICIENT_BUFFER' error regardless of the actual buffer size. This update applies a patch to fix this bug and the SCardGetAttrib() function now works as expected.

After installing this update, the pcscd daemon will be restarted automatically.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 64956

File Name: sl_20130221_pcsc_lite_on_SL6_x.nasl

Version: $Revision: 1.2 $

Type: local

Agent: unix

Published: 2013/03/01

Modified: 2014/08/16

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 4.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2013/02/21

Reference Information

CVE: CVE-2010-4531