CVE-2015-5739
The net/http library in net/textproto/reader.go in Go before 1.4.3 does not properly parse HTTP header keys, which allows remote attackers to conduct HTTP request smuggling attacks via a space instead of a hyphen, as demonstrated by "Content Length"…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The net/http library in net/textproto/reader.go in Go before 1.4.3 does not properly parse HTTP header keys, which allows remote attackers to conduct HTTP request smuggling attacks via a space instead of a hyphen, as demonstrated by "Content Length" instead of "Content-Length."
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 9.63% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- golang/go · fedoraproject/fedora · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus
- Source
- cve@mitre.org
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/167997.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168029.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1538.htmlThird Party Advisory
- http://seclists.org/oss-sec/2015/q3/237Mailing List, Third Party Advisory
- http://seclists.org/oss-sec/2015/q3/292Mailing List, Third Party Advisory
- http://seclists.org/oss-sec/2015/q3/294Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/76281Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1250352Issue Tracking, Patch, Third Party Advisory
- https://github.com/golang/go/commit/117ddcb83d7f42d6aa72241240af99ded81118e9Issue Tracking, Patch, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/167997.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168029.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-1538.htmlThird Party Advisory
- http://seclists.org/oss-sec/2015/q3/237Mailing List, Third Party Advisory
- http://seclists.org/oss-sec/2015/q3/292Mailing List, Third Party Advisory
- http://seclists.org/oss-sec/2015/q3/294Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/76281Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1250352Issue Tracking, Patch, Third Party Advisory
- https://github.com/golang/go/commit/117ddcb83d7f42d6aa72241240af99ded81118e9Issue Tracking, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.