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cve[email protected]CVE-2018-15861
HistoryAug 25, 2018 - 9:29 p.m.

CVE-2018-15861

2018-08-2521:29:02
CWE-476
web.nvd.nist.gov
75
cve-2018-15861
null pointer usage
xkbcomp
exprresolvelhs
xkbcommon

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

5.9 Medium

AI Score

Confidence

High

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

0.0004 Low

EPSS

Percentile

5.2%

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.

Affected configurations

NVD
Node
xkbcommonlibxkbcommonRange0.8.1
OR
xkbcommonxkbcommonRange0.8.1
Node
canonicalubuntu_linuxMatch14.04lts
OR
canonicalubuntu_linuxMatch16.04lts
OR
canonicalubuntu_linuxMatch18.04lts

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

5.9 Medium

AI Score

Confidence

High

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

0.0004 Low

EPSS

Percentile

5.2%