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This fixes a security issue where signatures of the
InRelease files could be circumvented in a man-in-the-middle
attack, giving attackers the ability to serve any packages
they want to a system, in turn giving them root access.
It turns out that getline() may not only return EINVAL
as stated in the documentation - it might also return
in case of an error when allocating memory.
This fix not only adds a check that reading worked
correctly, it also implicitly checks that all writes
worked by reporting any other error that occurred inside
the loop and was logged by apt.
Affected: >= 0.9.8
Reported-By: Jann Horn <jannh@google.com>
Thanks: Jann Horn, Google Project Zero for reporting the issue
LP: #1647467
(cherry picked from commit 51be550c5c38a2e1ddfc2af50a9fab73ccf78026)
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Gbp-Dch: ignore
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We always want to run codecov test, even if there are spurious
failures. We should really work around those failures more, though,
it is starting to annoy me.
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Closes: #838731
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This fixes a regression introduced in
commit 8f858d560e3b7b475c623c4e242d1edce246025a
don't leak FD in AutoProxyDetect command return parsing
which accidentally made the proxy autodetection code also read
the scripts output on stderr, not only on stdout when it switched
the code from popen() to Popen().
Reported-By: Tim Small <tim@seoss.co.uk>
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If the dependency line does not contain spaces in the repository
but does in the dpkg status file (because dpkg normalized the
dependency list), the dpkg line might be longer than the line
in the repository. If it now happens to be longer than 1024
characters, it would be skipped, causing the hashes to be
out of date.
Note that we have to bump the minor cache version again as
this changes the format slightly, and we might get mismatches
with an older src cache otherwise.
Fixes Debian/apt#23
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This allows fully automated code coverage testing, which is
basically awesome. To allow the methods and solvers and stuff
which run as _apt to write to our build directory, we need to
adjust the permissions a bit, but otherwise it's OK.
Gbp-Dch: ignore
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We need to ignore messages from gcov. All those messages
start with profiling: and are printed using vfprintf(), so
the only thing we can do is add a library overriding those
functions and linking apt-pkg to it.
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This allows us to easily test coverage
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This cleans up the output a bit, it should also improve performance,
but unfortunately, this does not really seem to be the case.
Gbp-Dch: ignore
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Even if we only configure a single architecture, install dpkg, so
dpkg can assert multi arch correctly. This also has the nice side
effect of making single architecture and multiple architecture
test cases more uniform.
This fixes a regression from f878d3a862128bc1385616751ae1d78246b1bd01
("test: Assert multi-arch in the chroot").
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If we copied one of the existing status files, we might not have
a trailing newline, so let's add one.
Gbp-Dch: ignore
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Commit b60c8a89c281f2bb945d426d2215cbf8f5760738 improved the situation,
but due to inconsistency mostly for planners, not for solvers. As the
idea of hiding errors if we show another error is a bit scary (as the
extern error might be a followup of our intern error, rather than the
reason for our intern error as it is at the moment) we don't discard the
errors, but if we got an extern error we show them directly removing
them from the error list at the end of the run – that list will contain
the extern error which hopefully gives us the best of both worlds.
The problem itself is the same as before: The externals exiting before
apt is done talking to them.
Reported-By: Johannes 'josch' Schauer on IRC
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Commit 3af3ac2f5ec007badeded46a94be2bd06b9917a2 (released in 1.3~pre1)
implements proper fallback for SRV, but that works actually too good
as the RFC defines that such an SRV record should indicate that the
server doesn't provide this service and apt should respect this.
The solution is hence to fail again as requested even if that isn't what
the user (and perhaps even the server admins) wanted. At least we will
print a message now explicitly mentioning SRV to point people in the
right direction.
Reported-In: https://bugs.kali.org/view.php?id=3525
Reported-By: Raphaël Hertzog
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Gbp-Dch: Ignore
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Normally make just lets every job write its output directly,
making the log fairly hard to read with high concurrency.
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dpkg on overlayfs cannot rename apt/script to apt, because overlayfs
will not let it move apt to a backup name, responding with XDEV
instead.
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Employ a priority queue instead of a normal queue to hold
the items; and only add items to the running pipeline if
their priority is the same or higher than the priority
of items in the queue.
The priorities are designed for a 3 stage pipeline system:
In stage 1, all Release files and .diff/Index files are fetched. This
allows us to determine what files remain to be fetched, and thus
ensures a usable progress reporting.
In stage 2, all Pdiff patches are fetched, so we can apply them
in parallel with fetching other files in stage 3.
In stage 3, all other files are fetched (complete index files
such as Contents, Packages).
Performance improvements, mainly from fetching the pdiff patches
before complete files, so they can be applied in parallel:
For the 01 Sep 2016 03:35:23 UTC -> 02 Sep 2016 09:25:37 update
of Debian unstable and testing with Contents and appstream for
amd64 and i386, update time reduced from 37 seconds to 24-28
seconds.
Previously, apt would first download new DEP11 icon tarballs
and metadata files, causing the CPU to be idle. By fetching
the diffs in stage 2, we can now patch our contents and Packages
files while we are downloading the DEP11 stuff.
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This accidentally used ICONV_DIRECTORIES, which does not
even exist. Weird.
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If a non-existing source directory is specified, try finding
the system gtest library. Debian derived distributions are
a bit strange because they only ship the source code and
not the library...
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I switched them over to generated files in commit
9fb81c6e54a2fe05c0ad0b877fd32f30358e3877, but forgot
to add them to the ignore file.
Gbp-Dch: ignore
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In gpgv1 GOODSIG (and the other messages of status-fd) are documented as
sending the long keyid. In gpgv2 it is documented to be either long
keyid or the fingerprint. At the moment it is still the long keyid, but
the documentation hints at the possibility of changing this.
We care about this for Signed-By support as we detect this way if the
right fingerprint has signed this file (or not). The check itself is
done via VALIDSIG which always is a fingerprint, but there must also be
a GOODSIG (as expired sigs are valid, too) found to be accepted which
wouldn't be found in the fingerprint-case and the signature hence
refused.
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The recently added (increased actually) Breaks were accidently dropped
while our set of mostly old and outdated breaks was cleaned up.
Regression-From: 20d2f4a4f164cd9026dad698e471c95d7c28973b
Previously-Add-In: ab07af708e49c9219940ffd3e20a01c763267e03
Closes: #836220
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Gbp-Dch: Ignore
Reported-By: gcc -Wmissing-declarations
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memcpy is marked as nonnull for its input, but ignores the input anyhow
if the declared length is zero. Our SHA2 implementations do this as
well, it was "just" MD5 and SHA1 missing, so we add the length check
here as well as along the callstack as it is really pointless to do all
these method calls for "nothing".
Reported-By: gcc -fsanitize=undefined
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gpg annoyingly changed its output and broke our test suite
again by adding two extra lines about key type and issuer.
Really annoying.
Those lines also have more than one space after the colon,
so let's use \s* there - and also change the other lines to
support variable length whitespace in case gpg decides to
break things there too.
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If the inner Base256ToNum() returned false, it did not set
Num to a new value, causing it to be uninitialized, and thus
might have caused the function to exit despite a good result.
Also document why the Res = Num, if (Res != Num) magic is done.
Reported-By: valgrind
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Adding 1 to the value of d->End - current makes restLength one byte
too long: If we pass memchr(current, ..., restLength) has thus
undefined behavior.
Also, reading the value of current has undefined behavior if
current >= d->End, not only for current > d->End:
Consider a string of length 1, that is d->End = d->Current + 1.
We can only read at d->Current + 0, but d->Current + 1 is beyond
the end of the string.
This probably caused several inexplicable build failures on hurd-i386
in the past, and just now caused a build failure on Ubuntu's amd64
builder.
Reported-By: valgrind
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I actually tried to amend the previous commit, but apparently
I forgot to add the file mode change.
Gbp-Dch: ignore
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If a Binary field contains one or more spaces before a comma, the
code produced a segmentation fault, as it accidentally set a pointer
to 0 instead of the value of the pointer.
If the comma is at the beginning of the field, the code would
create a binStartNext that points one element before the start
of the string, which is undefined behavior.
We also need to check that we do not exit the string during the
replacement of spaces before commas: A string of the form " ,"
would normally exit the boundary of the Buffer:
binStartNext = offset 1 ','
binEnd = offset 0 ' '
isspace_ascii(*binEnd) = true => --binEnd
=> binEnd = - 1
We get rid of the problem by only allowing spaces to be eliminated
if they are not the first character of the buffer:
binStartNext = offset 1 ','
binEnd = offset 0 ' '
binEnd > buffer = false, isspace_ascii(*binEnd) = true
=> exit loop
=> binEnd remains 0
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This works around an issue on Fedora where dpkg complains about
missing build-essential:
dpkg-checkbuilddeps: Unmet build dependencies: build-essential:native
Gbp-Dch: ignore
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This uses the current Ubuntu 16.04 for testing, but it only runs
one run, presumably as root.
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Introduce a new -qq mode for our integration test framework,
and make travis use it.
The new -qq mode sets MSGLEVEL to 1. In MSGLEVEL=1, no messages
are generated for passed tests, and all testcase filenames are
printed in the same line.
Also install first in travis, do not ls the installed output
and run the install with chronic, so we only get output if it
failed.
Gbp-Dch: ignore
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The CDN service deb.d.o is more reliable than the http
redirector, so switch to it for our examples.
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There are some optional symbols missing now, but let's keep
them in for now, maybe they reappear/still exist on other
platforms.
The newly added ones actually appeared in older versions
already, but there's no huge gain in finding out when precisely
we added them.
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Apparently we had no default defined for this.
Reported-By: David Kalnischkies
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This accidentally had two apt in it. This fixes a regression
from commit 8757a0f.
Gbp-Dch: ignore
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An absolute filename for a *.deb file starts with a /. A package with
the name of the file is inserted in the cache which is provided by the
"real" package for internal reasons. The pinning code detects a regex
based wildcard by having the regex start with /. That is no problem
as a / can not be included in a package name… expect that our virtual
filename package can and does.
We fix this two ways actually: First, a regex is only being considered a
regex if it also ends with / (we don't support flags). That stops our
problem with the virtual filename packages already, but to be sure we
also do not enter the loop if matcher and package name are equal.
It has to be noted that the creation of pins for virtual packages like
the here effected filename packages is pointless as only versions can be
pinned, but checking that a package is really purely virtual is too
costly compared to just creating an unused pin.
Closes: 835818
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Without randomizing the order in which we download the index files we
leak needlessly information to the mirrors of which architecture is
native or foreign on this system. More importantly, we leak the order in
which description translations will be used which in most cases will e.g.
have the native tongue first.
Note that the leak effect in practice is limited as apt detects if a file
it wants to download is already available in the latest version from a
previous download and does not query the server in such cases. Combined
with the fact that Translation files are usually updated infrequently
and not all at the same time, so a mirror can never be sure if it got asked
about all files the user wants.
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FreeBSD has two iconv systems: It ships an iconv.h itself,
and symbols for that in the libc. But there's also the port
of GNU libiconv, which unfortunately for us, Doxygen depends
on.
This changes things to prefer a separate libiconv library
over the system one; that is, the port on FreeBSD.
Gbp-Dch: ignore
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This is needed on BSD where root's default group is wheel, not
root.
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On BSD systems, the root group is wheel, not root, so let's
just use the default group here.
Gbp-Dch: ignore
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The host system might not have a dpkg installed, which makes
dpkg fail with:
dpkg not recorded as installed, cannot check for multi-arch support!
That's entirely useless of course. We want to know if dpkg could
support multi-arch in our chroot, so we pseudo-install dpkg into
the chroot and pretend it's version is one version higher than
the minimum dpkg version, so dpkg --assert-multi-arch works on
recent dpkgs.
Gbp-Dch: ignore
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