diff options
| author |   Patrick J Volkerding <volkerdi@slackware.com> | 2018-05-25 23:29:36 +0000 |
|---|---|---|
| committer |   Eric Hameleers <alien@slackware.com> | 2018-06-01 00:36:01 +0200 |
| commit | 39366733c3fe943363566756e2e152c45a1b3cb2 (patch) | |
| tree | 228b0735896af90ca78151c9a69aa3efd12c8cae /patches/source/xorg-server/patch/xorg-server/xorg-server.CVE-2017-10972.diff | |
| parent | d31c50870d0bee042ce660e445c9294a59a3a65b (diff) | |
| download | current-14.2.tar.gz current-14.2.tar.xz | |
Fri May 25 23:29:36 UTC 201814.2
patches/packages/glibc-zoneinfo-2018e-noarch-2_slack14.2.txz: Rebuilt.
Handle removal of US/Pacific-New timezone. If we see that the machine is
using this, it will be automatically switched to US/Pacific.
Diffstat (limited to 'patches/source/xorg-server/patch/xorg-server/xorg-server.CVE-2017-10972.diff')
| -rw-r--r-- | patches/source/xorg-server/patch/xorg-server/xorg-server.CVE-2017-10972.diff | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/patches/source/xorg-server/patch/xorg-server/xorg-server.CVE-2017-10972.diff b/patches/source/xorg-server/patch/xorg-server/xorg-server.CVE-2017-10972.diff new file mode 100644 index 000000000..edddc8d66 --- /dev/null +++ b/patches/source/xorg-server/patch/xorg-server/xorg-server.CVE-2017-10972.diff @@ -0,0 +1,36 @@ +From 05442de962d3dc624f79fc1a00eca3ffc5489ced Mon Sep 17 00:00:00 2001 +From: Michal Srb <msrb@suse.com> +Date: Wed, 24 May 2017 15:54:39 +0300 +Subject: Xi: Zero target buffer in SProcXSendExtensionEvent. + +Make sure that the xEvent eventT is initialized with zeros, the same way as +in SProcSendEvent. + +Some event swapping functions do not overwrite all 32 bytes of xEvent +structure, for example XSecurityAuthorizationRevoked. Two cooperating +clients, one swapped and the other not, can send +XSecurityAuthorizationRevoked event to each other to retrieve old stack data +from X server. This can be potentialy misused to go around ASLR or +stack-protector. + +Signed-off-by: Michal Srb <msrb@suse.com> +Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> +Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> + +diff --git a/Xi/sendexev.c b/Xi/sendexev.c +index 11d8202..1cf118a 100644 +--- a/Xi/sendexev.c ++++ b/Xi/sendexev.c +@@ -78,7 +78,7 @@ SProcXSendExtensionEvent(ClientPtr client) + { + CARD32 *p; + int i; +- xEvent eventT; ++ xEvent eventT = { .u.u.type = 0 }; + xEvent *eventP; + EventSwapPtr proc; + +-- +cgit v0.10.2 + + |