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TITLE:
OpenSC Serial Number Processing Buffer Overflow Vulnerabilities

SECUNIA ADVISORY ID:
SA42658

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42658/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42658

RELEASE DATE:
2010-12-25

DISCUSS ADVISORY:
http://secunia.com/advisories/42658/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Impact
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 * CVE Reference(s)

http://secunia.com/advisories/42658/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=42658

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Some vulnerabilities have been reported in OpenSC, which can be
exploited by malicious people to compromise an application using the
library.

The vulnerabilities are caused due to boundary errors in the
"acos_get_serialnr()", "acos5_get_serialnr()", and
"starcos_get_serialnr()" functions when reading out the serial number
of smart cards. This can be exploited to cause buffer overflows via a
specially crafted smart card.

Successful exploitation may allow execution of arbitrary code.

The vulnerabilities are reported in version 0.11.13. Other versions
may also be affected.

SOLUTION:
Fixed in the SVN repository.

Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

PROVIDED AND/OR DISCOVERED BY:
Rafael Dominguez Vega, MWR InfoSecurity

ORIGINAL ADVISORY:
OpenSC:
https://www.opensc-project.org/opensc/changeset/4913

MWR InfoSecurity:
http://labs.mwrinfosecurity.com/files/Advisories/mwri_opensc-get-serial-buffer-overflow_2010-12-13.pdf

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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