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CVE-2019-1000007

Depth counting error in guard() leading to multiple potential security issues in aioxmpp

7.4 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
High

Exploit likelihood

1.17%Up 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.4

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.

Record
CVE-2019-1000007
CVSS 3.0
7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS 2.0
5.8 MediumAV:N/AC:M/Au:N/C:N/I:P/A:P
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2019-1000007
Updated
2026-11-02
EUVDEUVD-2019-0001 No score

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.

Record
EUVD-2019-0001
Updated
2026-11-03
GitHub AdvisoriesGHSA-6m9g-jr8c-cqw3 8.3

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:

Record
GHSA-6m9g-jr8c-cqw3
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness
CWE-237
Updated
2026-11-02
OSV 7.4

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.

Record
CVE-2019-1000007
CVSS 3.0
7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-1000007 7.4

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.

Record
DEBIAN-CVE-2019-1000007
CVSS 3.0
7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02
OSVGHSA-6m9g-jr8c-cqw3 8.3

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:

Record
GHSA-6m9g-jr8c-cqw3
CVSS 4.0
8.3 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
7.4 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness
CWE-237
Updated
2026-11-02
OSVUBUNTU-CVE-2019-1000007 7.4

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.

Record
UBUNTU-CVE-2019-1000007
CVSS 3.0
7.4 HighCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Updated
2026-11-02
OSVPYSEC-2019-1 No score

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.

Record
PYSEC-2019-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
aioxmpp
PyPI
 before 0.10.3
0.10.3
python-aioxmpp
Debian:12
 before 0.10.3-1
0.10.3-1
aioxmpp
PyPI
 before 0.10.3, plus listed versions
0.10.00.10.10.10.20.20.3
Show 15 moreShow less
0.4.00.4.10.5.00.5.10.5.20.5.30.5.40.6.00.6.10.7.00.7.10.7.20.8.00.9.00.9.1
0.10.3
aioxmpp
PyPI
 before 0.10.3, plus listed versions
0.20.30.4.00.4.10.5.0
Show 15 moreShow less
0.5.10.5.20.5.30.5.40.6.00.6.10.7.00.7.10.7.20.8.00.9.00.9.10.10.00.10.10.10.2
0.10.3

History

History
RecordedChangedSources
affected
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-1000007 is a high vulnerability (CVSS 7.4) in Aioxmpp Project Aioxmpp, published February 4, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.17%, the 67th percentile. Fixed in aioxmpp 0.10.3.

References

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