Public Date:
664999: CVE-2010-4531 pcsc-lite: Stack-based buffer overflow in Answer-to-Reset (ATR) decoder

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2010-4531 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue affects the version of pcsc-lite shipped with Red Hat Enterprise linux 5 and 6. This issue was addressed in Red Hat Enterprise Linux 6 via RHSA-2013:0525. A future update may address this flaw in Red Hat Enterprise Linux 5.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 4.6
Base Metrics AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (pcsc-lite) RHSA-2013:0525 2013-02-20

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 pcsc-lite Fix deferred