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ubuntucveUbuntu.comUB:CVE-2021-23987
HistoryMar 25, 2021 - 12:00 a.m.

CVE-2021-23987

2021-03-2500:00:00
ubuntu.com
ubuntu.com
14

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

0.003

Percentile

67.8%

JSON

Mozilla developers and community members reported memory safety bugs
present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed
evidence of memory corruption and we presume that with enough effort some
of these could have been exploited to run arbitrary code. This
vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird <
78.9.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 87.0+build3-0ubuntu0.18.04.2UNKNOWN
ubuntu20.04noarchfirefox< 87.0+build3-0ubuntu0.20.04.2UNKNOWN
ubuntu20.10noarchfirefox< 87.0+build3-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
ubuntu24.04noarchfirefox< 87.0+build3-0ubuntu1UNKNOWN
Rows per page:
1-10 of 261

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debian
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[SECURITY] [DSA 4874-1] firefox-esr security update
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oraclelinux
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firefox security update
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Security fix for the ALT Linux 10 package firefox-esr version 78.9.0-alt1
2021-03-23 00:00:00
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Important: thunderbird
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Security update for MozillaFirefox (important)
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Important: firefox security update
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Important: thunderbird security update
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ibm
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Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 78.9.0 ESR +  CVE-2021-23987) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF13 + CP4MCM2.2
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thunderbird security update
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KLA12129 Multiple vulnerabilities in Mozilla Thunderbird
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osv
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Updated thunderbird packages fix security vulnerabilities
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redhat
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(RHSA-2021:0994) Important: thunderbird security update
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(RHSA-2021:0989) Important: firefox security update
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(RHSA-2021:0991) Important: firefox security update
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mozilla
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Security Vulnerabilities fixed in Thunderbird 78.9 — Mozilla
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Security Vulnerabilities fixed in Firefox ESR 78.9 — Mozilla
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Security Vulnerabilities fixed in Firefox 87 — Mozilla
2021-03-23 00:00:00
ubuntu
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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

0.003

Percentile

67.8%

JSON
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