Depth counting error in guard() leading to multiple potential security issues in aioxmpp
Impact
Possible remote Denial of Service or Data Injection.
Patches
Patches are available in https://github.com/horazont/aioxmpp/pull/268. They have been backported to the 0.10 release series and 0.10.3 is the first release to contain the fix.
Workarounds
To make the bug exploitable, an error suppressing xso_error_handler is required. By not using xso_error_handlers or not using the suppression function, the vulnerability can be mitigated completely (to our knowledge).
References
The pull request contains a detailed description: https://github.com/horazont/aioxmpp/pull/268
For more information
If you have any questions or comments about this advisory:
- Join our chat
- Email the maintainer Jonas Schäfer
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | aioxmpp | < 0.10.3 | 0.10.3 |
References
- https://github.com/horazont/aioxmpp/pull/268
- https://github.com/advisories/GHSA-6m9g-jr8c-cqw3
- https://github.com/horazont/aioxmpp/security/advisories/GHSA-6m9g-jr8c-cqw3
- https://nvd.nist.gov/vuln/detail/CVE-2019-1000007
- https://github.com/horazont/aioxmpp/commit/29ff0838a40f58efe30a4bbcea95aa8dab7da475
- https://github.com/horazont/aioxmpp/commit/f151f920f439d97d4103fc11057ed6dc34fe98be
- https://github.com/horazont/aioxmpp
- https://github.com/pypa/advisory-database/tree/main/vulns/aioxmpp/PYSEC-2019-1.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H- Weakness (CWE)
CWE-237- Platform
- Python (PyPI)
- Package
aioxmpp- Disclosed
- 04.02.2019
- Updated
- 11.10.2026 11:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2019-1 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-6m9g-jr8c-cqw3 - CC BY 4.0
Vulnerability history: aioxmpp
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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