CVE-2019-1000007 Depth counting error in guard() leading to multiple potential security issues in aioxmpp
A remote attacker can cause denial of service or data injection in applications using the aioxmpp library by sending a crafted stanza.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-1000007?
CVE-2019-1000007 is a high-severity denial of service vulnerability in n/a, published on 4 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
aioxmpp version 0.10.2 and earlier contains a Improper Handling of Structural Elements vulnerability in Stanza Parser, rollback during error processing, aioxmpp.xso.model.guard function that can result in Denial of Service, Other. This attack appears to be exploitable via Remote. A crafted stanza can be sent to an application which uses the vulnerable components to either inject data in a different context or cause the application to reconnect (potentially losing data). This vulnerability appears to have been fixed in 0.10.3.
Which versions are affected by CVE-2019-1000007?
3 open source packages ship an affected version, including aioxmpp. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
aioxmpp PyPI | All versions | 0.10.3 |
aioxmpp PyPI | All versions | 0.10.3 |
aioxmpp PyPI | All versions | 0.10.3 |
Products include Aioxmpp Project Aioxmpp.
How do I fix CVE-2019-1000007?
Upgrade aioxmpp to 0.10.3 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-1000007 being exploited?
There is no known exploitation of CVE-2019-1000007 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2019-1000007, GHSA-6m9g-jr8c-cqw3, PYSEC-2019-1.