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* Backport: xserver: Avoid sending uninitialized padding data over the networkPeter Åstrand2015-07-028-1/+47
| | | | Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
* dix: Allow zero-height PutImage requests (fix for X.Org's CVE-2015-3418).Keith Packard2015-05-011-1/+1
| | | | | | | | | | | | The length checking code validates PutImage height and byte width by making sure that byte-width >= INT32_MAX / height. If height is zero, this generates a divide by zero exception. Allow zero height requests explicitly, bypassing the INT32_MAX check. Fix for regression introduced by fix for CVE-2014-8092. v2: backports to nx-libs 3.6.x (Mike Gabriel) Signed-off-by: Keith Packard <keithp@keithp.com>
* library clean-up: Don't build and link libXfont.a anymore. Use system's ↵pr/libxfont-cleanupMike Gabriel2015-04-222-17/+2
| | | | libXfont shared library and link dynamically.
* imake cleanup: Drop all references to XprtServer and BuildXprint*.Mike Gabriel2015-04-043-41/+1
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* dix: integer overflow in ProcPutImage() [CVE-2014-8092 1/4]Alan Coopersmith2015-02-141-1/+3
| | | | | | | | | | | | | | | | | ProcPutImage() calculates a length field from a width, left pad and depth specified by the client (if the specified format is XYPixmap). The calculations for the total amount of memory the server needs for the pixmap can overflow a 32-bit number, causing out-of-bounds memory writes on 32-bit systems (since the length is stored in a long int variable). v2: backport to nx-libs 3.6.x (Mike DePaulo) Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> Conflicts: dix/dispatch.c
* Avoid use-after-free in dix/dixfonts.c: doImageText() [CVE-2013-4396] from ↵Mike DePaulo2015-02-141-0/+5
| | | | | | | | | | | | | | | | | | | | | 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.
* Several fixes for building debug versions of NX ↵Mihai Moldovan2015-02-131-1/+1
| | | | | | | | | | | | | | | | | | (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.
* drop .original files from the current code baseMike Gabriel2015-02-024-4662/+0
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* Imported nx-X11-3.1.0-4.tar.gznx-X11/3.1.0-4Reinhard Tartler2011-10-103-0/+21
| | | | | | | | Summary: Imported nx-X11-3.1.0-4.tar.gz Keywords: Imported nx-X11-3.1.0-4.tar.gz into Git repository
* Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1Reinhard Tartler2011-10-1034-0/+34876
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
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