Issued:

2013-02-21

Updated:

2013-02-21

RHSA-2013:0525 - Moderate: pcsc-lite security and bug fix update

Synopsis

Moderate: pcsc-lite security and bug fix update

Type/Severity

Security Advisory Moderate

Topic

Updated pcsc-lite packages that fix one security issue and three bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Description

PC/SC Lite provides a Windows SCard compatible interface for communicating with smart cards, smart card readers, and other security tokens.

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. (BZ#788474, BZ#814549)

• Because the chkconfig settings and the startup files in the /etc/rc.d/ directory were not changed during the update described in the RHBA-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. (BZ#834803)

• 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. (BZ#891852)

All users of pcsc-lite are advised to upgrade to these updated packages, which fix these issues. After installing this update, the pcscd daemon will be restarted automatically.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Affected Products

Updated Packages

• pcsc-lite-devel-1.5.2-11.el6.s390x.rpm
• pcsc-lite-libs-1.5.2-11.el6.s390.rpm
• pcsc-lite-debuginfo-1.5.2-11.el6.x86_64.rpm
• pcsc-lite-1.5.2-11.el6.src.rpm
• pcsc-lite-devel-1.5.2-11.el6.ppc.rpm
• pcsc-lite-devel-1.5.2-11.el6.x86_64.rpm
• pcsc-lite-libs-1.5.2-11.el6.ppc64.rpm
• pcsc-lite-doc-1.5.2-11.el6.i686.rpm
• pcsc-lite-libs-1.5.2-11.el6.s390x.rpm
• pcsc-lite-doc-1.5.2-11.el6.x86_64.rpm
• pcsc-lite-debuginfo-1.5.2-11.el6.ppc.rpm
• pcsc-lite-1.5.2-11.el6.ppc64.rpm
• pcsc-lite-1.5.2-11.el6.x86_64.rpm
• pcsc-lite-doc-1.5.2-11.el6.ppc64.rpm
• pcsc-lite-devel-1.5.2-11.el6.i686.rpm
• pcsc-lite-libs-1.5.2-11.el6.i686.rpm
• pcsc-lite-debuginfo-1.5.2-11.el6.i686.rpm
• pcsc-lite-libs-1.5.2-11.el6.x86_64.rpm
• pcsc-lite-devel-1.5.2-11.el6.ppc64.rpm
• pcsc-lite-libs-1.5.2-11.el6.ppc.rpm
• pcsc-lite-debuginfo-1.5.2-11.el6.s390.rpm
• pcsc-lite-debuginfo-1.5.2-11.el6.s390x.rpm
• pcsc-lite-debuginfo-1.5.2-11.el6.ppc64.rpm
• pcsc-lite-1.5.2-11.el6.i686.rpm
• pcsc-lite-doc-1.5.2-11.el6.s390x.rpm
• pcsc-lite-devel-1.5.2-11.el6.s390.rpm
• pcsc-lite-1.5.2-11.el6.s390x.rpm

Fixes

• This content is not included.BZ - 664999
• This content is not included.BZ - 834803
• This content is not included.BZ - 891852

CVEs

• CVE-2010-4531

References

• https://access.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.