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ubuntucveUbuntu.comUB:CVE-2020-6805
HistoryMar 11, 2020 - 12:00 a.m.

CVE-2020-6805

2020-03-1100:00:00
ubuntu.com
ubuntu.com
25
thunderbird
firefox
quota manager
use-after-free
exploitable crash
cve-2020-6805
mozilla
spidermonkey javascript engine

CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.008

Percentile

81.8%

When removing data about an origin whose tab was recently closed, a
use-after-free could occur in the Quota manager, resulting in a potentially
exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox <
74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 74.0+build3-0ubuntu0.18.04.1UNKNOWN
ubuntu19.10noarchfirefox< 74.0+build3-0ubuntu0.19.10.1UNKNOWN
ubuntu20.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu20.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu21.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
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CVSS2

6.8

Attack Vector

NETWORK

Attack 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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.008

Percentile

81.8%