Vulnerability Information
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Vulnerability Title
Race condition in Zulip
Vulnerability Description
Zulip is an open source group chat application. Starting with version 4.0 and prior to version 4.11, Zulip is vulnerable to a race condition during account deactivation, where a simultaneous access by the user being deactivated may, in rare cases, allow continued access by the deactivated user. A patch is available in version 4.11 on the 4.x branch and version 5.0-rc1 on the 5.x branch. Upgrading to a fixed version will, as a side effect, deactivate any cached sessions that may have been leaked through this bug. There are currently no known workarounds.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Vulnerability Title
Zulip 竞争条件问题漏洞
Vulnerability Description
Zulip是Zulip团队的一款功能强大的开源群聊应用程序。用于将实时聊天的即时性与线程对话的生产力优势相结合。 Zulip 4.0版本及4.11之前版本 存在竞争条件问题漏洞，该漏洞源于Zulip 在帐户停用期间容易受到竞争条件的影响。在极少数情况下，当被停用的用户同时访问时，是允许停用的用户继续访问的。
CVSS Information
N/A
Vulnerability Type
N/A