Stack-based buffer overflow in the ATRDecodeAtr function in the Answer-to-Reset (ATR) Handler (atrhandler.c) for pcscd in PCSC-Lite 1.5.3, and possibly other 1.5.x and 1.6.x versions, allows physically proximate attackers to cause a denial of service (crash) and possibly execute arbitrary code via a smart card with an ATR message containing a long attribute value.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - pcsc-lite: Stack-based buffer overflow in Answer-to-Reset (ATR) decoder (CVE-2010-4531)

Note that Nessus has not tested for this issue but has instead relied on the package manager's report that the package is installed.

An integer overflow in pcsc-ccid and a buffer overflow in pcsc-lite while handling smart card responses have been fixed. CVE-2010-4530 and CVE-2010-4531 have been assigned to these issues.

The remote host is affected by the vulnerability described in GLSA-201401-17 (PCSC-Lite: Arbitrary code execution)

    PCSC-Lite contains a stack-based buffer overflow in the ATRDecodeAtr       function in the       Answer-to-Reset Handler (atrhandler.c).
  Impact :

    A physically proximate attacker could execute arbitrary code or cause a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

From Red Hat Security Advisory 2013:0525 :

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.

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.

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.

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.

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.

Rafael Dominguez Vega discovered that PCSC-Lite incorrectly handled smart cards with malformed ATR messages. An attacker having physical access could exploit this with a special smart card and cause a denial of service or execute arbitrary code.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

A buffer overflow in pcsc-lite while handling smart card responses has been fixed. CVE-2010-4531 has been assigned to this issues.

An integer overflow in pcsc-ccid and a buffer overflow in pcsc-lite while handling smart card responses have been fixed.

CVE-2010-4530 / CVE-2010-4531 have been assigned to these issues.
Additionally a new device ID for card readers was added.

MWR InfoSecurity identified a buffer overflow in pcscd, middleware to access a smart card via PC/SC, which could lead to the execution of arbitrary code.

A vulnerability has been found and corrected in pcsc-lite :

Stack-based buffer overflow in the ATRDecodeAtr function in the Answer-to-Reset (ATR) Handler (atrhandler.c) for pcscd in PCSC-Lite 1.5.3, and possibly other 1.5.x and 1.6.x versions, allows physically proximate attackers to cause a denial of service (crash) and possibly execute arbitrary code via a smart card with an ATR message containing a long attribute value (CVE-2010-4531).

Packages for 2009.0 are provided as of the Extended Maintenance Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149 products_id=490

The updated packages have been patched to correct this issue.

This update fixes the following security issue :

A stack-based buffer overflow flaw was found in the way PC/SC Lite smart card framework decoded certain attribute values of the Answer-to-Reset (ATR) message, received back from the card after connecting. A local attacker could use this flaw to execute arbitrary code with the privileges of the user running the pcscd daemon, via a malicious smart card inserted to the system USB port.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
198344	RHEL 5 : pcsc-lite (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
75602	openSUSE Security Update : libpcsclite1 (openSUSE-SU-2011:0092-1)	Nessus	SuSE Local Security Checks	medium
72072	GLSA-201401-17 : PCSC-Lite: Arbitrary code execution	Nessus	Gentoo Local Security Checks	medium
68760	Oracle Linux 6 : pcsc-lite (ELSA-2013-0525)	Nessus	Oracle Linux Local Security Checks	medium
65155	CentOS 6 : pcsc-lite (CESA-2013:0525)	Nessus	CentOS Local Security Checks	medium
64956	Scientific Linux Security Update : pcsc-lite on SL6.x i386/x86_64 (20130221)	Nessus	Scientific Linux Local Security Checks	medium
64771	RHEL 6 : pcsc-lite (RHSA-2013:0525)	Nessus	Red Hat Local Security Checks	medium
55085	Ubuntu 9.10 / 10.04 LTS / 10.10 : pcsc-lite vulnerability (USN-1125-1)	Nessus	Ubuntu Local Security Checks	medium
53754	openSUSE Security Update : libpcsclite1 (openSUSE-SU-2011:0092-1)	Nessus	SuSE Local Security Checks	medium
51845	SuSE 10 Security Update : pcsc-lite (ZYPP Patch Number 7298)	Nessus	SuSE Local Security Checks	medium
51844	SuSE 11.1 Security Update : pcsc-lite (SAT Patch Number 3889)	Nessus	SuSE Local Security Checks	medium
51829	Debian DSA-2156-1 : pcscd - buffer overflow	Nessus	Debian Local Security Checks	medium
51806	Mandriva Linux Security Advisory : pcsc-lite (MDVSA-2011:015)	Nessus	Mandriva Local Security Checks	medium
51518	Fedora 14 : pcsc-lite-1.6.4-3.fc14 (2011-0164)	Nessus	Fedora Local Security Checks	medium
51514	Fedora 13 : pcsc-lite-1.5.5-5.fc13 (2011-0123)	Nessus	Fedora Local Security Checks	medium

Detections

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CVE-2010-4531

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