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ubuntucveUbuntu.comUB:CVE-2019-9792
HistoryMar 20, 2019 - 12:00 a.m.

CVE-2019-9792

2019-03-2000:00:00
ubuntu.com
ubuntu.com
19

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.091 Low

EPSS

Percentile

94.6%

The IonMonkey just-in-time (JIT) compiler can leak an internal
JS_OPTIMIZED_OUT magic value to the running script during a bailout. This
magic value can then be used by JavaScript to achieve memory corruption,
which results in a potentially exploitable crash. This vulnerability
affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 66.0+build3-0ubuntu0.18.04.1UNKNOWN
ubuntu18.10noarchfirefox< 66.0+build3-0ubuntu0.18.10.1UNKNOWN
ubuntu19.04noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
ubuntu19.10noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
ubuntu20.04noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
ubuntu20.10noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
ubuntu21.04noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 66.0+build3-0ubuntu1UNKNOWN
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9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access 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

0.091 Low

EPSS

Percentile

94.6%