CVE-2019-16215
Medium
Description
The Markdown parser in Zulip server before 2.0.5 used a regular expression vulnerable to exponential backtracking. A user who is logged into the server could send a crafted message causing the server to spend an effectively arbitrary amount of CPU time and stall the processing of future messages.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Zulip Server
PublishedSep 18, 2019
First seenSep 18, 2019
How to fix
Update
- zulip zulip_server2.0.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zulip zulip_server | v < 2.0.5 | 2.0.5 |
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