CVE-2019-9741: CRLF Injection
First published: Wed Mar 13 2019(Updated: )
An issue was discovered in net/http in Go 1.11.5. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the second argument to http.NewRequest with \r\n followed by an HTTP header or a Redis command.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Golang Go | =1.11.5 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Fedoraproject Fedora | =29 | |
| Redhat Developer Tools | =1.0 | |
| Redhat Enterprise Linux | =8.0 | |
| redhat/Go | <1.12.1 | 1.12.1 |
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Reference Links
- http://www.securityfocus.com/bid/107432
- https://access.redhat.com/errata/RHSA-2019:1300
- https://access.redhat.com/errata/RHSA-2019:1519
- https://github.com/golang/go/issues/30794
- https://lists.debian.org/debian-lts-announce/2019/04/msg00007.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00014.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TOOVCEPQM7TZA6VEZEEB7QZABXNHQEHH/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1688233
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1688234
- https://github.com/golang/go/commit/829c5df58694b3345cb5ea41206783c8ccf5c3ca#diff-b97af51863ce82bf2a13003b52034aa9
- https://github.com/golang/go/commit/f1d662f34788f4a5f087581d0951cdf4e0f6e708#diff-b97af51863ce82bf2a13003b52034aa9
- https://access.redhat.com/security/cve/cve-2019-9741
- https://bugzilla.redhat.com/show_bug.cgi?id=1688230
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TOOVCEPQM7TZA6VEZEEB7QZABXNHQEHH/
Frequently Asked Questions
What is CVE-2019-9741?
CVE-2019-9741 is a vulnerability discovered in net/http in Go 1.11.5 that allows for CRLF injection if the attacker controls a URL parameter.
What is the severity of CVE-2019-9741?
The severity of CVE-2019-9741 is medium (6.1).
How does CVE-2019-9741 affect Golang Go?
CVE-2019-9741 affects Golang Go version 1.11.5.
How does CVE-2019-9741 affect Debian Debian Linux?
CVE-2019-9741 affects Debian Debian Linux version 8.0 and 9.0.
How does CVE-2019-9741 affect Fedora Fedora?
CVE-2019-9741 affects Fedora Fedora version 29.
How does CVE-2019-9741 affect Redhat Developer Tools?
CVE-2019-9741 affects Redhat Developer Tools version 1.0.
How does CVE-2019-9741 affect Redhat Enterprise Linux?
CVE-2019-9741 affects Redhat Enterprise Linux version 8.0.
How do I fix CVE-2019-9741 in Golang Go?
To fix CVE-2019-9741, update Golang Go to version 1.12.1 or higher.
Where can I find more information about CVE-2019-9741?
You can find more information about CVE-2019-9741 at the following references: [Link 1](http://www.securityfocus.com/bid/107432), [Link 2](https://access.redhat.com/errata/RHSA-2019:1300), [Link 3](https://access.redhat.com/errata/RHSA-2019:1519).
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