From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: Xen Security Advisory 180 (CVE-2014-3672) - Unrestricted qemu logging Date: Wed, 25 May 2016 16:43:36 +0100 Message-ID: <20160525154336.GS22076@citrix.com> References: <20160525145123.GC18213@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20160525145123.GC18213@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: George Dunlap Cc: "xen-devel@lists.xen.org" , Wei Liu , "Xen.org security team" List-Id: xen-devel@lists.xenproject.org T24gV2VkLCBNYXkgMjUsIDIwMTYgYXQgMDM6NTE6MjNQTSArMDEwMCwgV2VpIExpdSB3cm90ZToK PiBPbiBXZWQsIE1heSAyNSwgMjAxNiBhdCAwMzowNDo0MFBNICswMTAwLCBHZW9yZ2UgRHVubGFw IHdyb3RlOgo+ID4gT24gTW9uLCBNYXkgMjMsIDIwMTYgYXQgNjowOSBQTSwgWGVuLm9yZyBzZWN1 cml0eSB0ZWFtIDxzZWN1cml0eUB4ZW4ub3JnPiB3cm90ZToKPiA+ID4gUkVTT0xVVElPTgo+ID4g PiA9PT09PT09PT09Cj4gPiA+Cj4gPiA+IEFwcGx5aW5nIHRoZSBhcHByb3ByaWF0ZSBhdHRhY2hl ZCBwYXRjaCByZXNvbHZlcyB0aGlzIGlzc3VlLgo+ID4gPgo+ID4gPiBUaGUgcGF0Y2hlcyBhZG9w dCBhIHNpbXBsZSBhbmQgcmF0aGVyIGNydWRlIGFwcHJvYWNoIHdoaWNoIGlzCj4gPiA+IGVmZmVj dGl2ZSBhdCByZXNvbHZpbmcgdGhlIHNlY3VyaXR5IGlzc3VlIGluIHRoZSBjb250ZXh0IG9mIGEg WGVuCj4gPiA+IGRldmljZSBtb2RlbC4gIFRoZXkgbWF5IG5vdCBiZSBhcHByb3ByaWF0ZSBmb3Ig YWRvcHRpb24gdXBzdHJlYW0gb3IgaW4KPiA+ID4gb3RoZXIgY29udGV4dHMuCj4gPiAKPiA+IFRo aXMgaXMgaW5kZWVkIGEgcmF0aGVyIGNydWRlIGFwcHJvYWNoOyBidXQgZm9yIG91ciB1cGNvbWlu ZyA0LjcKPiA+IHJlbGVhc2UsIHdoYXQncyB0aGUgcGxhbj8gIERvIHdlIGhhdmUgdGltZSB0byBn ZW5lcmFsaXplIHhlbmNvbnNvbGVkCj4gPiB0byBoYW5kbGUgdGhpcyBzb3J0IG9mIGxvZ2dpbmcs IGFuZCBpZiBzbywgd2hvIGlzIGdvaW5nIHRvIGRvIHRoYXQKPiA+IHdvcms/Cj4gPiAKPiAKPiBJ IHRoaXMgaXQncyBnb2luZyB0byBiZSBhIGJpdCBpbnRydXNpdmUgYXQgdGhpcyBwb2ludCB0byBj aGFuZ2UKPiB4ZW5jb25zb2xlZCB0byBkbyB0aGF0LiBIb3dldmVyIGl0IHNob3VsZCBiZSB0b28g aGFyZCB0byB0ZXN0Lgo+IFdlIGFsc28gbmVlZCBwZW9wbGUgdG8gdGVzdCBhbmQgcmV2aWV3IGl0 LiBBbGwgaW4gYWxsIGl0IHNlZW1zIHRpbWUgaXMKPiB2ZXJ5IHRpZ2h0Lgo+IAoKSSBqdXN0IHJl YWQgdGhlIGNvZGUgb2YgdmlydGxvZ2QgYW5kIHhlbmNvbnNvbGVkLgoKSSB0aGluayB4ZW5jb25z b2xlZCBpcyBtaXNzaW5nIGF0IGxlYXN0IHRoaW5ncy4KCkZyb20gYSBoaWdoZXIgbGV2ZWw6Cgox LiBBYnN0cmFjdGlvbiBvZiByb3RhdGluZyBmaWxlLgoyLiBBYnN0cmFjdGlvbiBvZiBjbGllbnQu CjMuIElQQyBpbnRlcmZhY2UgdG8gbGlieGwgLS0gcHJlc3VtYWJseSB3ZSBuZWVkIHRvIGNyZWF0 ZSBhIHNvY2tldC4KClRoZW4gd2UgbmVlZCB0byB3cml0ZSBjb2RlIGluIGxpYnhsIHRvIHVzZSBp dC4gVGhhdCB0aGVuIGludm9sdmVzCmludmVudGluZyBhIHByb3RvY29sIHRvIHBhc3MgdGhlIGZp bGUgbmFtZSB0byB4ZW5jb25zb2xlZCAoYXNzdW1pbmcgd2UKc3RpbGwgd2FudCBvbmUgZmlsZSBw ZXIgcWVtdSkuCgpXZWkuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0 dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=