National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-16215 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 6.5 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://blog.zulip.org/2019/09/11/zulip-server-2-0-5-security-release/ Vendor Advisory
https://github.com/zulip/zulip/commit/5797f013b3be450c146a4141514bda525f2f1b51 Patch Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption NIST  

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:zulip:zulip_server
     Show Matching CPE(s)
Up to (excluding)
2.0.5


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-16215
NVD Published Date:
09/18/2019
NVD Last Modified:
09/18/2019