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gnu: icecat: Add more fixes, including Spectre mitigation.

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* gnu/packages/gnuzilla.scm (icecat)[source]: Add more fixes from the
upstream mozilla-esr52 repository, plus a backported mitigation for
Spectre from Firefox 57.0.4.
* gnu/packages/patches/icecat-bug-1427870-spectre-mitigation.patch:
New file.
* gnu/local.mk (dist_patch_DATA): Add it.
This commit is contained in:
Mark H Weaver 2018-01-06 13:40:23 -05:00
parent 5ae8c77ade
commit c23243fccd
No known key found for this signature in database
GPG key ID: 7CEF29847562C516
3 changed files with 55 additions and 1 deletions
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1
gnu/local.mk
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@ -757,6 +757,7 @@ dist_patch_DATA = \
%D%/packages/patches/icecat-bug-1415133.patch \
%D%/packages/patches/icecat-bug-1414945.patch \
%D%/packages/patches/icecat-bug-1424373-pt2.patch \
%D%/packages/patches/icecat-bug-1427870-spectre-mitigation.patch \
%D%/packages/patches/icu4c-CVE-2017-7867-CVE-2017-7868.patch \
%D%/packages/patches/icu4c-CVE-2017-14952.patch \
%D%/packages/patches/icu4c-reset-keyword-list-iterator.patch \

6
gnu/packages/gnuzilla.scm
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@ -510,7 +510,11 @@ (define-public icecat
(mozilla-patch "icecat-bug-1412145.patch" "66cfc3c4047d" "05j8ic4lv2d2ygr6d62rkdlfyg2rpljalwrkkhllinw2dfi3n15b")
(mozilla-patch "icecat-bug-1399400.patch" "3236ffdf0ced" "1kvk4qyslaj1ldgs1wpxnf79zajcihzcd1zvbrg990i3hgyn3gk3")
(mozilla-patch "icecat-bug-1424373-pt1.patch" "320032aaa068" "1ch282qibprz1q0f2imvynh4sg7gads6sf3ayhjcd62zjncpgyz7")
(search-patch "icecat-bug-1424373-pt2.patch")))
(search-patch "icecat-bug-1424373-pt2.patch")
(mozilla-patch "icecat-bug-1412420.patch" "c2945f1249eb" "18p0344w6grpyfiz8dczfw977p0qy37iqv95whgnrjli2ab51kji")
(mozilla-patch "icecat-bug-1395508-pt1.patch" "263165eacc54" "0518xnd9f4qkn7l0z73kldm9dr33y6hf054ril4f8r2j8s9fy33i")
(mozilla-patch "icecat-bug-1395508-pt2.patch" "58e87d9cc44e" "0j9qwjm25bmhw0sj426yl4fqaa6zknf5cjk0yisdd3895652n5i4")
(search-patch "icecat-bug-1427870-spectre-mitigation.patch")))
(modules '((guix build utils)))
(snippet
'(begin

49
gnu/packages/patches/icecat-bug-1427870-spectre-mitigation.patch Normal file
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@ -0,0 +1,49 @@
Mitigate Spectre by reducing the resolution of performance.now() to 20
microseconds. Based on:
https://hg.mozilla.org/releases/mozilla-release/rev/afa87f9be3a8
For more details, see:
https://blog.mozilla.org/security/2018/01/03/mitigations-landing-new-class-timing-attack/
This patch was modified to apply cleanly to GNU IceCat.
# HG changeset patch
# User Tom Ritter <tom@mozilla.com>
# Date 1514660820 21600
# Node ID afa87f9be3a8852da3a30f286b15ae599c7874f6
# Parent 6caa457ebedc915b43dc1d054b8fe22e82ca7447
Bug 1427870 - Change resolution of .now() to 20us. r=bkelly, a=lizzard
The comment about workers was introduced in Bug 1186489 but became obsolete some time after that
(definitely by Bug 1278838)
diff --git a/dom/performance/Performance.cpp b/dom/performance/Performance.cpp
--- a/dom/performance/Performance.cpp
+++ b/dom/performance/Performance.cpp
@@ -234,20 +234,19 @@ Performance::ClearResourceTimings()
{
MOZ_ASSERT(NS_IsMainThread());
mResourceEntries.Clear();
}
DOMHighResTimeStamp
Performance::RoundTime(double aTime) const
{
- // Round down to the nearest 5us, because if the timer is too accurate people
- // can do nasty timing attacks with it. See similar code in the worker
- // Performance implementation.
- const double maxResolutionMs = 0.005;
+ // Round down to the nearest 20us, because if the timer is too accurate people
+ // can do nasty timing attacks with it.
+ const double maxResolutionMs = 0.020;
return floor(aTime / maxResolutionMs) * maxResolutionMs;
}
void
Performance::Mark(const nsAString& aName, ErrorResult& aRv)
{
// Don't add the entry if the buffer is full. XXX should be removed by bug 1159003.