Date: Wed, 5 Aug 2015 12:36:39 -0400 (EDT) From: cve-assign@...re.org To: jbuberel@...gle.com Cc: cve-assign@...re.org, oss-security@...ts.openwall.com Subject: Re: CVE Request - Go net/http library - HTTP smuggling -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 > https://github.com/golang/go/commit/117ddcb83d7f42d6aa72241240af99ded81118e9 > > * Invalid headers are parsed as valid headers (like "Content Length:" with a > space in the middle) For purposes of CVE assignments, we feel that this needs to be categorized separately from the other parts of the report. The primary factor is that there are different sets of affected versions. This behavior apparently was not present in all versions of Go: it was added in February 2012. Also, it is not really an error in determining the semantics of a set of headers; it's a security-relevant error in interpretation of the syntax of an individual header. Use CVE-2015-5739. > https://github.com/golang/go/commit/300d9a21583e7cf0149a778a0611e76ff7c6680f > > * Double Content-length headers in a request does not generate a 400 error, > the second Content-length is ignored Use CVE-2015-5740 for the reporter's finding of a security-relevant RFC 7230 3.3.3 4 violation ("MUST respond with a 400 (Bad Request) status code"). 300d9a21583e7cf0149a778a0611e76ff7c6680f also has code changes that were not mentioned in your "as provided by the reporter" section. Our interpretation is that there were separate internal discoveries of other security-relevant RFC 7230 violations, such as "MUST NOT send a Content-Length header field in any message that contains a Transfer-Encoding header field." Use CVE-2015-5741 for one or more internal discoveries reflected in 300d9a21583e7cf0149a778a0611e76ff7c6680f. Finally, if there is a code change in 300d9a21583e7cf0149a778a0611e76ff7c6680f that is exclusively for the purposes of hardening (i.e., no RFC requires the change as a smuggling security fix, and the code change is not for addressing an individually exploitable problem), then that code change is outside the scope of CVE. - -- CVE assignment team, MITRE CVE Numbering Authority M/S M300 202 Burlington Road, Bedford, MA 01730 USA [ PGP key available through http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBCAAGBQJVwjr0AAoJEKllVAevmvms4SgH/1K26OmJwLV0/D+IgSIcWq8q ecN2DlngcNpU7W/fq9o/brN4hoMGVzh/aEPU3JIqC0JbY0OhidPe/DZmqLcndnwb iQ4wS4r89akrzZpdOYc09oBlqyxKtto1exwFHWqqdVIbBjHdq+nQhEBwYGyjf/XK 0DyEX6f72Msa//HFhNKycOKM4KPKsi1Gh5Dl+L9nddWnPdTnTSHoIdD+RGmXDDkD 8i6WI/e5QVrGL2g24mrpefDUWX/p9T/cx9LR1hiiUUDuvns40NVz11E1i8PD2fv3 wRzEjUqyt94syYh9PNa0+ZFH7sPUyYOhnpi3/1UzRkSUSI++FfpDFrq3rOEZ4Jk= =rNSr -----END PGP SIGNATURE-----
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