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ubuntucveUbuntu.comUB:CVE-2018-12293
HistoryJun 14, 2018 - 12:00 a.m.

CVE-2018-12293

2018-06-1400:00:00
ubuntu.com
ubuntu.com
10

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.62 Medium

EPSS

Percentile

97.8%

The getImageData function in the ImageBufferCairo class in
WebCore/platform/graphics/cairo/ImageBufferCairo.cpp in WebKit, as used in
WebKitGTK+ prior to version 2.20.3 and WPE WebKit prior to version 2.20.1,
is vulnerable to a heap-based buffer overflow triggered by an integer
overflow, which could be abused by crafted HTML content.

Notes

Author Note
jdstrand webkit receives limited support. For details, see https://wiki.ubuntu.com/SecurityTeam/FAQ#webkit webkit in Ubuntu uses the JavaScriptCore (JSC) engine, not V8

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.62 Medium

EPSS

Percentile

97.8%