Security update for libxkbcommon SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2018:3685-1 Final 1 1 2018-11-08T16:57:36Z current 2018-11-08T16:57:36Z 2018-11-08T16:57:36Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libxkbcommon This update for libxkbcommon to version 0.8.2 fixes the following issues: - Fix a few NULL-dereferences, out-of-bounds access and undefined behavior in the XKB text format parser. - CVE-2018-15853: Endless recursion could have been used by local attackers to crash xkbcommon users by supplying a crafted keymap file that triggers boolean negation (bsc#1105832). - CVE-2018-15854: Unchecked NULL pointer usage could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because geometry tokens were desupported incorrectly (bsc#1105832). - CVE-2018-15855: Unchecked NULL pointer usage could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because the XkbFile for an xkb_geometry section was mishandled (bsc#1105832). - CVE-2018-15856: An infinite loop when reaching EOL unexpectedly could be used by local attackers to cause a denial of service during parsing of crafted keymap files (bsc#1105832). - CVE-2018-15857: An invalid free in ExprAppendMultiKeysymList could have been used by local attackers to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file (bsc#1105832). - CVE-2018-15858: Unchecked NULL pointer usage when handling invalid aliases in CopyKeyAliasesToKeymap could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file (bsc#1105832). - CVE-2018-15859: Unchecked NULL pointer usage when parsing invalid atoms in ExprResolveLhs could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because lookup failures are mishandled (bsc#1105832). - CVE-2018-15861: Unchecked NULL pointer usage in ExprResolveLhs could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file that triggers an xkb_intern_atom failure (bsc#1105832). - CVE-2018-15862: Unchecked NULL pointer usage in LookupModMask could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers (bsc#1105832). - CVE-2018-15863: Unchecked NULL pointer usage in ResolveStateAndPredicate could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with a no-op modmask expression (bsc#1105832). - CVE-2018-15864: Unchecked NULL pointer usage in resolve_keysym could have been used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because a map access attempt can occur for a map that was never created (bsc#1105832). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Module-Basesystem-15-2018-2620 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ Link for SUSE-SU-2018:3685-1 https://lists.suse.com/pipermail/sle-security-updates/2018-November/004841.html E-Mail link for SUSE-SU-2018:3685-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1105832 SUSE Bug 1105832 https://www.suse.com/security/cve/CVE-2018-15853/ SUSE CVE CVE-2018-15853 page https://www.suse.com/security/cve/CVE-2018-15854/ SUSE CVE CVE-2018-15854 page https://www.suse.com/security/cve/CVE-2018-15855/ SUSE CVE CVE-2018-15855 page https://www.suse.com/security/cve/CVE-2018-15856/ SUSE CVE CVE-2018-15856 page https://www.suse.com/security/cve/CVE-2018-15857/ SUSE CVE CVE-2018-15857 page https://www.suse.com/security/cve/CVE-2018-15858/ SUSE CVE CVE-2018-15858 page https://www.suse.com/security/cve/CVE-2018-15859/ SUSE CVE CVE-2018-15859 page https://www.suse.com/security/cve/CVE-2018-15861/ SUSE CVE CVE-2018-15861 page https://www.suse.com/security/cve/CVE-2018-15862/ SUSE CVE CVE-2018-15862 page https://www.suse.com/security/cve/CVE-2018-15863/ SUSE CVE CVE-2018-15863 page https://www.suse.com/security/cve/CVE-2018-15864/ SUSE CVE CVE-2018-15864 page SUSE Linux Enterprise Module for Basesystem 15 libxkbcommon-devel-0.8.2-3.3.1 libxkbcommon-x11-0-0.8.2-3.3.1 libxkbcommon-x11-devel-0.8.2-3.3.1 libxkbcommon0-0.8.2-3.3.1 libxkbcommon-devel-0.8.2-3.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 libxkbcommon-x11-0-0.8.2-3.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 libxkbcommon-x11-devel-0.8.2-3.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 libxkbcommon0-0.8.2-3.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 Endless recursion exists in xkbcomp/expr.c in xkbcommon and libxkbcommon before 0.8.1, which could be used by local attackers to crash xkbcommon users by supplying a crafted keymap file that triggers boolean negation. CVE-2018-15853 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15853.html CVE-2018-15853 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because geometry tokens were desupported incorrectly. CVE-2018-15854 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15854.html CVE-2018-15854 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because the XkbFile for an xkb_geometry section was mishandled. CVE-2018-15855 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15855.html CVE-2018-15855 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 An infinite loop when reaching EOL unexpectedly in compose/parser.c (aka the keymap parser) in xkbcommon before 0.8.1 could be used by local attackers to cause a denial of service during parsing of crafted keymap files. CVE-2018-15856 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15856.html CVE-2018-15856 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 An invalid free in ExprAppendMultiKeysymList in xkbcomp/ast-build.c in xkbcommon before 0.8.1 could be used by local attackers to crash xkbcommon keymap parsers or possibly have unspecified other impact by supplying a crafted keymap file. CVE-2018-15857 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15857.html CVE-2018-15857 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage when handling invalid aliases in CopyKeyAliasesToKeymap in xkbcomp/keycodes.c in xkbcommon before 0.8.1 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file. CVE-2018-15858 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15858.html CVE-2018-15858 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage when parsing invalid atoms in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because lookup failures are mishandled. CVE-2018-15859 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15859.html CVE-2018-15859 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file that triggers an xkb_intern_atom failure. CVE-2018-15861 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15861.html CVE-2018-15861 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage in LookupModMask in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with invalid virtual modifiers. CVE-2018-15862 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15862.html CVE-2018-15862 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage in ResolveStateAndPredicate in xkbcomp/compat.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with a no-op modmask expression. CVE-2018-15863 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15863.html CVE-2018-15863 https://bugzilla.suse.com/1105832 SUSE Bug 1105832 Unchecked NULL pointer usage in resolve_keysym in xkbcomp/parser.y in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because a map access attempt can occur for a map that was never created. CVE-2018-15864 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-0-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon-x11-devel-0.8.2-3.3.1 SUSE Linux Enterprise Module for Basesystem 15:libxkbcommon0-0.8.2-3.3.1 low 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183685-1/ https://www.suse.com/security/cve/CVE-2018-15864.html CVE-2018-15864 https://bugzilla.suse.com/1105832 SUSE Bug 1105832