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mozillaMozilla FoundationMFSA2006-22
HistoryApr 13, 2006 - 12:00 a.m.

CSS Letter-Spacing Heap Overflow Vulnerability — Mozilla

2006-04-1300:00:00
Mozilla Foundation
www.mozilla.org
6

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.974 High

EPSS

Percentile

99.9%

An anonymous researcher for TippingPoint and the Zero Day Initiative discovered an integer overflow triggered by the CSS letter-spacing property. This results in in under-allocating memory and ultimately a heap buffer overflow which could be exploited to run code of the attacker’s choice.

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.974 High

EPSS

Percentile

99.9%