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Date: Sat, 17 Dec 2016 20:06:22 -0500
From: <cve-assign@...re.org>
To: <squid3@...enet.co.nz>
CC: <cve-assign@...re.org>, <oss-security@...ts.openwall.com>
Subject: Re: CVE Request - squid HTTP proxy multiple Information Disclosure issues
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Hash: SHA256
> http://www.squid-cache.org/Advisories/SQUID-2016_11.txt
> Incorrect processing of responses to If-None-Modified HTTP conditional
> requests leads to client-specific Cookie data being leaked to other
> clients. Attack requests can easily be crafted by a client to probe a
> cache for this information.
> the CVE critical leak was due to these lines in
> src/client_side_reply.cc:
>
> bool matchedIfNoneMatch = false;
> if (r.header.has(HDR_IF_NONE_MATCH)) {
> if (!e->hasIfNoneMatchEtag(r)) {
> ...
> - http->logType = LOG_TCP_MISS;
> - sendMoreData(result);
>
> This last line should have called " processMiss(result); "
Use CVE-2016-10002.
> http://www.squid-cache.org/Advisories/SQUID-2016_10.txt
> Incorrect HTTP Request header comparison results in Collapsed
> Forwarding feature mistakenly identifying some private responses as
> being suitable for delivery to multiple clients.
Use CVE-2016-10003.
> The current fix is not quite complete. However we believe the remaining
> headers leaked are not a serious security issue.
If anyone needs a CVE ID for this issue (involving other headers) that
was not fixed in 3.5.23 and 4.0.17, please let us know.
- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
http://cve.mitre.org/cve/request_id.html ]
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