| Commit message (Collapse) | Author | Age | Files | Lines |
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Jover). from xorg/lib/libXfont commit bfb8a71f4f7e5c5ed4278cb3ee271bf9990d276d
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xorg/lib/libXfont commit 891e084b26837162b12f841060086a105edde86d
The connection setup reply from the font server can include a list
of alternate servers to contact if this font server stops working.
The reply specifies a total size of all the font server names, and
then provides a list of names. _fs_recv_conn_setup() allocated the
specified total size for copying the names to, but didn't check to
make sure it wasn't copying more data to that buffer than the size
it had allocated.
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xorg/lib/libXfont commit 05c8020a49416dd8b7510cbba45ce4f3fc81a7dc
lexAlias() reads from a file in a loop. It does this by starting with a
64 byte buffer. If that size limit is hit, it does a realloc of the
buffer size << 1, basically doubling the needed length every time the
length limit is hit.
Eventually, this will shift out to 0 (for a length of ~4gig), and that
length will be passed on to realloc(). A length of 0 (with a valid
pointer) causes realloc to free the buffer on most POSIX platforms,
but the caller will still have a pointer to it, leading to use after
free issues.
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xorg/lib/libXfont commit 2f5e57317339c526e6eaee1010b0e2ab8089c42e
FontFileReadDirectory() opens a fonts.dir file, and reads over every
line in an fscanf loop. For each successful entry read (font name,
file name) a call is made to FontFileAddFontFile().
FontFileAddFontFile() will add a font file entry (for the font name
and file) each time it’s called, by calling FontFileAddEntry().
FontFileAddEntry() will do the actual adding. If the table it has
to add to is full, it will do a realloc, adding 100 more entries
to the table size without checking to see if that will overflow the
int used to store the size.
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bdfReadCharacters() from xorg/lib/libXfont http://lists.x.org/archives/xorg-announce/2014-January/002389.html
Fixes cppcheck warning:
[lib/libXfont/src/bitmap/bdfread.c:341]: (warning)
scanf without field width limits can crash with huge input data.
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xorg/Xserver http://lists.x.org/archives/xorg-announce/2013-October/002332.html
Save a pointer to the passed in closure structure before copying it
and overwriting the *c pointer to point to our copy instead of the
original. If we hit an error, once we free(c), reset c to point to
the original structure before jumping to the cleanup code that
references *c.
Since one of the errors being checked for is whether the server was
able to malloc(c->nChars * itemSize), the client can potentially pass
a number of characters chosen to cause the malloc to fail and the
error path to be taken, resulting in the read from freed memory.
Since the memory is accessed almost immediately afterwards, and the
X server is mostly single threaded, the odds of the free memory having
invalid contents are low with most malloc implementations when not using
memory debugging features, but some allocators will definitely overwrite
the memory there, leading to a likely crash.
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commit 6ba44b91e37622ef8c146d8f2ac92d708a18ed34
use O_NOFOLLOW to open the existing lock file, so symbolic links
aren't followed, thus avoid revealing if it point to an existing
file.
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d11ee5886e9d9ec610051a206b135a4cdc1e09a0
Specially crafted LZW stream can crash an application using libXfont
that is used to open untrusted font files. With X server, this may
allow privilege escalation when exploited
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Adapted packaging scripts:
debian/roll-tarballs.sh
nx-libs.spec
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Affected packagings scripts:
debian/roll-tarballs.sh
debian/rules
nx-libs.spec
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The installation process copies NX wrapper scripts into
$(srcbase)/bin/ before build time.
Those wrapper scripts are now in place natively and need not
to be copied prior to building NX.
Packaging scripts with adaptation:
debian/roll-tarballs.sh
debian/rules
debian/*.docs
nx-libs.spec
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This makes it obsolete to add changes to debian/changelog. We document
our changes in Git (3.6.x branch and other related branches). On
release, we generate an upstream ChangeLog from Git history.
Only on the 3.5.0.x, we continue maintaining our changes in
debian/changelog (to be compliant with current nx-libs release workflow
in X2Go).
The following packaging scripts needed adaptations to this change:
debian/roll-tarballs.sh
debian/rules
nx-libs.spec
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nx*/VERSION and hw/nxagent/VERSION.
This commit removes the debian/VERSION file at makes it now unnecessary to
copy/symlink the VERSION file at build time. These build scripts got adapted:
debian/roll-tarballs.sh
debian/rules
nx-libs.spec
Furthermore, all NX component now use the main VERSION file as reference.
typechange: nxcomp/VERSION
typechange: nxcompext/VERSION
typechange: nxcompshad/VERSION
typechange: nxproxy/VERSION
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packaging these scripts:
debian/roll-tarballs.sh
debian/rules
nx-libs.spec
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e91277d02bf1288909daed3b0de8f876f6403acf.
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d4d3fe0e6e77a58e68defc5895a589a681d7d092.
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This reverts commit 4436e97903aa6e2a7732fb98dcb46758a73fe130.
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NoMachine kept all original X.Org 6.9 files in the nx-X11 source
tree. These files have been removed in Feb 2015 during a major
code cleanup.
For later studying we provide all diffs of the changes that
NoMachine employed on the original X.Org X11 code tree in the
doc/nx-X11_vs_XOrg69_patches folder.
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(999_nxagent_unbrand-nxagent-brand-x2goagent.full.patch).
When launched with NX Agent flavour, the startup screen gets unbranded by
this patch (the !M logo does not get shown).
When launched with X2Go Agent flavour, the startup screen gets branded
with the X2GO logo.
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Former patch file names:
991_fix-hr-typos.full+lite.patch
991_fix-hr-typos.full.patch
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(990_fix-DEBUG-and-TEST-builds.full.patch).
(1) In nx-X11/programs/Xserver/dix:
Fix several compile errors when specifying -DDEBUG globally. Previous GCC
versions were more liberal and the code thus compiled.
Also initialize/reset a count variable correctly.
(2) In nx-X11/programs/Xserver/hw/nxagent/Render.c:
Check for pSrc->pDrawable to exist instead of having nxagent segfault when
it does not.
This enables the possibility of compiling all nxagent modules in TEST mode.
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(607_nxcomp_macosx-X11-launcher-in-private-tmp.full+lite.patch).
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(606_nx-X11_build-on-aarch64.full.patch).
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(605_nxcomp_Types.h-dont-use-STL-internals-on-libc++.full+lite.patch).
The nx-libs-lite package does not compile on OS X Mavericks because
Apple's clang compilers now default to compiling against the libc++ STL
rather than (their outdated copy of) libstdc++.
While the compiler still allows changing that, we should not rely on
this being possible forever.
The compiler chokes in Types.h, specifically the clear() methods in
subclasses of vectors that use implementation details of the GNU STL.
The attached patch fixes these compilation issues by not overriding the
clear() method when compiling against libc++, since the libc++ headers
seem to do essentially the same as the overriden method.
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(603_nx-X11_compilation_warnings.full.patch).
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relinquishing privileges (602_nx-X11_initgroups.full.patch).
The Fedora review of NX (redistributed) caught the following rpmlint issue:
This executable is calling setuid and setgid without setgroups or initgroups.
There is a high probability this mean it didn't relinquish all groups, and this
would be a potential security issue to be fixed. Seek POS36-C on the web for
details about the problem.
Ref POS36-C:
https://www.securecoding.cert.org/confluence/display/seccode/POS36-C.+Observe+correct+revocation+order+while+relinquishing+privileges
This patch adds initgroups() calls to the code to initialize the supplemental group list.
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(601_nx-X11_build-option-changes-to-not-use-bundled-libraries.full.patch).
This commit has been submitted by Orion in two
portions. One was submitted to X2Go BTS and created
on Wed, 10 Jul 2013.
The other portion has been taken from the Fedora
package by Mike Gabriel and worked into this
patch on Fri, 06 Dec 2013.
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(600_nx-X11+nxcompext+nxcompshad_unique-libnames.full.patch).
We really want to make use of rpm's automatic dependency finding.
Binaries are scanned for DT_NEEDED entries, the latter of which are
then used for populating the "Requires"-type deps. The "nxagent"
binary for example would require libX11.so.6. That incurs problems:
1. A package manager told to install nxagent could select xorg-x11
rather than nx-libs, even though nxagent depends on the NX version.
2. A package manager told to install $some_program could select nx-libs
rather than xorg-x11 (since both provide libX11.so.6), but, since
the NX library is in an obscure directory, running $some_program
would fail as libX11.so.6 is not found.
To solve this, give the NX libraries unique names different from the
Xorg ones.
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(400_nxcomp-version.full+lite.patch).
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(321_nxagent_x2go-specific-keystroke-config.full.patch).
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(320_nxagent_configurable-keystrokes.full.patch).
Replaces the hardcoded nxagent keybindings by a configurable
table of keybindings. The default configuration is the same as the
original one, to maintain compatibility. A user/administrator can either
specify a command line parameter, environment variable or place a file
in ~/.nx/config/keystrokes.cfg or /etc/nxagent/keystrokes.cfg to reconfigure
these keybindings.
The configuration file format is XML, a dependency on libxml2 is added
to allow parsing the configuration.
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(302_nx-X11_xkbbasedir-detection.full.patch).
In recent (as of 2014/06) X.org release, the keymap.dir file
has become obsolete. Let's test for the xkb/rules/base file
instead.
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wrapper script.
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Was needed and was tested on Ubuntu 14.04.
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Many distributions have a policy to reduce code duplications.
One means to avoid such duplications is to use shared libraries
instead of using libs that are ofter shipped for convenience.
Fedora:
http://fedoraproject.org/wiki/Packaging:Guidelines#Shared_Libraries
Debian (Section 10.7.4 of Debian policy):
http://www.debian.org/doc/debian-policy/ch-files.html
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Depending on the binary name of the agent either NXAgent
or X2GoAgent is set as WM_Class.
This is needed for some window managers (like the one shipped with
Maemo)
The original WM_CLASS patch has been taken from the FreeNX patch
series, author unknown.
The nxagent/x2goagent has been done by the X2Go Project, author
see below.
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(220_nxproxy_bind-loopback-only.full+lite.patch).
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(212_nxcomp_build-on-Android.full+lite.patch).
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(211_nxcomp_set_default_options.full+lite.patch).
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210_nxagent_save_session_state.full.patch
210_nxcomp_save_session_state.full+lite.patch
This patch adds a "state" option to NX (agent) which
allows one to specify a file where nxagent will write
its session state into.
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(207_nxagent_fix-xfixes-selection.full.patch).
When nxagent has the XFIXES extension enabled copy and
paste from outside applications to applications within the session
that rely on XFixesSelectSelectionInput (e.g. qt applications like
konsole) did never receive any notifications because the nxagent did
not register itself at the real X server to receive them. Fixes X2Go Bug
#585 (http://bugs.x2go.org/585).
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(206_nxagent_clipboard-as-nxoption.full.patch).
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(205_nxagent_refresh-adsl.full.patch).
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