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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:90897
[Rus]
Version
2
Class
patch
ALTXid
265498
Language
English
Severity
Medium
Title
USN-3786-2 -- libxkbcommon vulnerabilities
Description
Several security issues were fixed in libxkbcommon.
Family
unix
Platform
Ubuntu 18.04
Linux Mint 19
Product
libxkbcommon - library interface to the XKB compiler
Reference
VENDOR: USN-3786-2
VENDOR: USN-3786-2
Id:
USN-3786-2
Reference:
https://usn.ubuntu.com/3786-2/
CVE: CVE-2018-15853
CVE: CVE-2018-15853
Id:
CVE-2018-15853
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15853
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
400 (Uncontrolled Resource Consumption ('Resource Exhaustion'))
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/1f9d1248c07cda8aaff762429c0dce146de8632a (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15854
CVE: CVE-2018-15854
Id:
CVE-2018-15854
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15854
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/e3cacae7b1bfda0d839c280494f23284a1187adf (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15855
CVE: CVE-2018-15855
Id:
CVE-2018-15855
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15855
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/917636b1d0d70205a13f89062b95e3a0fc31d4ff (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15856
CVE: CVE-2018-15856
Id:
CVE-2018-15856
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15856
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
835 (Loop with Unreachable Exit Condition ('Infinite Loop'))
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/842e4351c2c97de6051cab6ce36b4a81e709a0e1 (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15857
CVE: CVE-2018-15857
Id:
CVE-2018-15857
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15857
Comment
: 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.
CVSSv2 Score:
4.6
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
416 (Use After Free)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/c1e5ac16e77a21f87bdf3bc4dea61b037a17dddb (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15858
CVE: CVE-2018-15858
Id:
CVE-2018-15858
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15858
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039232.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/badb428e63387140720f22486b3acbd3d738859f (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
CVE: CVE-2018-15859
CVE: CVE-2018-15859
Id:
CVE-2018-15859
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15859
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/bb4909d2d8fa6b08155e449986a478101e2b2634 (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15861
CVE: CVE-2018-15861
Id:
CVE-2018-15861
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15861
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/38e1766bc6e20108948aec8a0b222a4bad0254e9 (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15862
CVE: CVE-2018-15862
Id:
CVE-2018-15862
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15862
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/4e2ee9c3f6050d773f8bbe05bc0edb17f1ff8371 (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15863
CVE: CVE-2018-15863
Id:
CVE-2018-15863
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15863
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/96df3106d49438e442510c59acad306e94f3db4d (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
CVE: CVE-2018-15864
CVE: CVE-2018-15864
Id:
CVE-2018-15864
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15864
Comment
: 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.
CVSSv2 Score:
2.1
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSSv3 Score:
5.5
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html (MISC)
https://github.com/xkbcommon/libxkbcommon/commit/a8ea7a1d3daa7bdcb877615ae0a252c189153bd2 (MISC)
USN-3786-1 (UBUNTU)
GLSA-201810-05 (GENTOO)
USN-3786-2 (UBUNTU)
RHSA-2019:2079 (REDHAT)
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