diff options
Diffstat (limited to 'debian/patches/1033-glx-Additional-paranoia-in-__glXGetAnswerBuffer-__GL.patch')
| -rw-r--r-- | debian/patches/1033-glx-Additional-paranoia-in-__glXGetAnswerBuffer-__GL.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/debian/patches/1033-glx-Additional-paranoia-in-__glXGetAnswerBuffer-__GL.patch b/debian/patches/1033-glx-Additional-paranoia-in-__glXGetAnswerBuffer-__GL.patch new file mode 100644 index 000000000..a043d2104 --- /dev/null +++ b/debian/patches/1033-glx-Additional-paranoia-in-__glXGetAnswerBuffer-__GL.patch @@ -0,0 +1,41 @@ +From d0fcbc8a6ca82df82c410d0f8f9062b05fa5ec8d Mon Sep 17 00:00:00 2001 +From: Adam Jackson <ajax@redhat.com> +Date: Mon, 10 Nov 2014 12:13:38 -0500 +Subject: [PATCH 33/40] glx: Additional paranoia in __glXGetAnswerBuffer / + __GLX_GET_ANSWER_BUFFER (v2) [CVE-2014-8093 3/6] + +If the computed reply size is negative, something went wrong, treat it +as an error. + +v2: Be more careful about size_t being unsigned (Matthieu Herrb) +v3: SIZE_MAX not SIZE_T_MAX (Alan Coopersmith) +v4: backport to nx-libs 3.6.x (Mike DePaulo) + +Reviewed-by: Julien Cristau <jcristau@debian.org> +Reviewed-by: Michal Srb <msrb@suse.com> +Reviewed-by: Andy Ritger <aritger@nvidia.com> +Signed-off-by: Adam Jackson <ajax@redhat.com> +Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> +Signed-off-by: Fedora X Ninjas <x@fedoraproject.org> +Signed-off-by: Dave Airlie <airlied@redhat.com> +--- + nx-X11/programs/Xserver/GL/glx/unpack.h | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/nx-X11/programs/Xserver/GL/glx/unpack.h b/nx-X11/programs/Xserver/GL/glx/unpack.h +index 723fb85..94bdae8 100644 +--- a/nx-X11/programs/Xserver/GL/glx/unpack.h ++++ b/nx-X11/programs/Xserver/GL/glx/unpack.h +@@ -89,7 +89,8 @@ extern xGLXSingleReply __glXReply; + ** pointer. + */ + #define __GLX_GET_ANSWER_BUFFER(res,cl,size,align) \ +- if ((size) > sizeof(answerBuffer)) { \ ++ if (size < 0) return BadLength; \ ++ else if ((size) > sizeof(answerBuffer)) { \ + int bump; \ + if ((cl)->returnBufSize < (size)+(align)) { \ + (cl)->returnBuf = (GLbyte*)Xrealloc((cl)->returnBuf, \ +-- +2.1.4 + |