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mozillaMozilla FoundationMFSA2015-50
HistoryMay 12, 2015 - 12:00 a.m.

Out-of-bounds read and write in asm.js validation — Mozilla

2015-05-1200:00:00
Mozilla Foundation
www.mozilla.org
20

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.041 Low

EPSS

Percentile

92.2%

Security researcher Dougall Johnson reported an out-of-bounds read and write in asm.js during JavaScript validation due to an error in how heap lengths are defined. This results in a potentially exploitable crash and could allow for the reading of random memory which may contain sensitive data.

Affected configurations

Vulners
Node
mozillafirefoxRange<38
OR
mozillaseamonkeyRange<2.35
CPENameOperatorVersion
firefoxlt38
seamonkeylt2.35

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.041 Low

EPSS

Percentile

92.2%