CVE-2019-16215

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Source
https://cve.org/CVERecord?id=CVE-2019-16215
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-16215.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-16215
Published
2019-09-18T12:15:10Z
Modified
2026-10-20T10:50:46Z
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
0 Unknown introduced commit / All previous commits are affected
Fixed
2bb3af1ade5bb3613dc88d44164abbe1230cd679
Fixed
5797f013b3be450c146a4141514bda525f2f1b51
Database specific
Show details 
{
    "extracted_events":  [
        {
            "cpe":  "cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*",
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.0.5"
                }
            ],
            "source":  "CPE_RANGE"
        },
        {
            "range":  [
                {
                    "fixed":  "5797f013b3be450c146a4141514bda525f2f1b51"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

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/cve-osv-conversion/osv-output/CVE-2019-16215.json"