#VU30372 Inconsistent interpretation of HTTP requests in Go programming language - CVE-2015-5741

Vulnerability identifier: #VU30372

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2015-5741

CWE-ID: CWE-444

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Go programming language
Universal components / Libraries / Scripting languages

Vendor: Google

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The net/http library in net/http/transfer.go in Go before 1.4.3 does not properly parse HTTP headers, which allows remote attackers to conduct HTTP request smuggling attacks via a request that contains Content-Length and Transfer-Encoding header fields.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Go programming language: 1.4.1 - 1.4.2

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External links
https://lists.fedoraproject.org/pipermail/package-announce/2015-October/167997.html
https://lists.fedoraproject.org/pipermail/package-announce/2015-October/168029.html
https://seclists.org/oss-sec/2015/q3/237
https://seclists.org/oss-sec/2015/q3/292
https://seclists.org/oss-sec/2015/q3/294
https://bugzilla.redhat.com/show_bug.cgi?id=1250352
https://github.com/golang/go/commit/300d9a21583e7cf0149a778a0611e76ff7c6680f

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.