要点
- CVE-2019-1000007 は aioxmpp, aioxmpp (aioxmpp project) に影響する深刻度「高」 (CVSS 7.4) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：1.2%（全脆弱性の 67.6% より高い）。
- 対処：0.10.3 以降に更新してください。
| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|
| aioxmpp PyPI | < 0.10.3
| 0.10.3
|
| aioxmpp | ≤ 0.10.2
| 修正版なし |
概要
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:
NVD の説明
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.
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