Multiple Array index errors leading to heap-based buffer OOB write flaws were found in the libX11, Core X11 protocol client library. When a X client is connected to a malcicious X server , (modified to return invalid values), it can cause arbirary code execution with the privileges of the user running the X client. Affected functions: XAllocColorCells(), _XkbReadGetDeviceInfoReply(), _XkbReadGeomShapes(), _XkbReadGetGeometryReply(), _XkbReadKeySyms(), _XkbReadKeyActions(), _XkbReadKeyBehaviors(), _XkbReadModifierMap(), _XkbReadExplicitComponents(), _XkbReadVirtualModMap(), _XkbReadGetNamesReply(), _XkbReadGetMapReply(), _XimXGetReadData(), XListFonts(), XListExtensions()
Public via: http://www.openwall.com/lists/oss-security/2013/05/23/3
Upstream patches: http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=cddc4e7e3cb4b9b7ad25f8591971a86901c249f2 [1/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=f293659d5a4024bda386305bb7ebeb4647c40934 [2/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=bff938b9fe1629cbacb726509edfa2a3840b7207 [3/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=59ae16a00d18588e98af57d26e442af8ea42b7aa [4/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=fd7d4956bc7a1c4b5c38661b12777ebee4d685d9 [5/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=00626c3830b869259098985afa38933d77ccec72 [6/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=06c086e8a1d8374ea9a95ff989f053c96bb1bdca [7/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=e56a2ada719c5cfac5ed61a52a80ade86c0f5957 [8/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=4d7c422a37eb9617fb22f8e37527c2b34b105665 [9/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=2df882eeb3a70256170127a746a9ba26376599a1 [10/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=de2e6c322c4aca22856b380f67f8e488e7510015 [11/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=b9ba832401734e1cbd30a930c0d11d850293f3f9 [12/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=0c404db6a92dc2c198328bf586c02d8abbe02013 [13/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=8d5936594993921acdfec778dd8f41b555e2543a [14/15] http://cgit.freedesktop.org/xorg/lib/libX11/commit/?id=db1b1c871da29aa0545182bf888df81627f165a5 [15/15]
These issues affect the versions of the libX11 package, as shipped with Fedora release of 17 and 18. Please schedule an update.
Created libX11 tracking bugs for this issue Affects: fedora-all [bug 966680]
External References: http://www.x.org/wiki/Development/Security/Advisory-2013-05-23
libX11-1.5.99.901-3.20130524gita3bdd2b09.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report.
libX11-1.5.99.901-3.20130524gita3bdd2b09.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.
All packages in stable, closing.
This issue affects the version of libX11 as shipped with Red Hat Enterprise Linux 5 and 6.
Statement: This issue affects the libX11 package in Red Hat Enterprise Linux 5. Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not planned to be fixed in Red Hat Enterprise Linux 5 as it is now in Production 3 Phase of the support and maintenance life cycle: https://access.redhat.com/support/policy/updates/errata/
This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2014:1436 https://rhn.redhat.com/errata/RHSA-2014-1436.html