CVE-2019-16215

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Source

https://cve.org/CVERecord?id=CVE-2019-16215

Import Source

https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-16215.json

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2019-16215

Published

2019-09-18T12:15:10.910Z

Modified

2026-05-18T16:58:31.663351Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

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

Affected packages

Git / github.com/zulip/zulip

Affected ranges

Type

GIT

Repo

https://github.com/zulip/zulip

Events

Introduced

Fixed

2bb3af1ade5bb3613dc88d44164abbe1230cd679

Fixed

5797f013b3be450c146a4141514bda525f2f1b51

Database specific

{
    "cpe": "cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*",
    "source": [
        "CPE_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.0.5"
        }
    ]
}

Affected versions

1.*

1.3.0

1.3.1

1.3.10

1.3.11

1.3.13

1.3.2

1.3.3

1.3.4

1.3.5

1.3.6

1.3.7

1.3.8

1.3.9

1.4.0

1.5.0

1.6.0

1.7.0

1.8.0

1.8.0-rc1

1.9.0

1.9.0-rc2

1.9.0-rc3

2.*

2.0.0

2.0.0-rc1

2.0.1

2.0.2

2.0.3

2.0.4

enterprise-1.*

enterprise-1.1.5

enterprise-1.2.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-16215.json"