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.
References
Link | 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 |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2019-09-18T11:07:00
Updated: 2019-09-18T11:07:00
Reserved: 2019-09-11T00:00:00
Link: CVE-2019-16215
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-09-18T12:15:10.910
Modified: 2024-02-08T20:28:52.407
Link: CVE-2019-16215
JSON object: View
Redhat Information
No data.
CWE