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ubuntuUbuntuUSN-5037-1
HistoryAug 11, 2021 - 12:00 a.m.

Firefox vulnerabilities

2021-08-1100:00:00
ubuntu.com
114
mozilla open source
denial of service
sensitive information
unwanted permissions
arbitrary code

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

AI Score

8.7

Confidence

High

EPSS

0.017

Percentile

87.8%

Releases

  • Ubuntu 21.04
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • firefox - Mozilla Open Source web browser

Details

Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, trick a user into accepting unwanted permissions, or execute
arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchfirefox< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-dbg< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-dev< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-geckodriver< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-af< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-an< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-ar< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-as< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-ast< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
Ubuntu21.04noarchfirefox-locale-az< 91.0+build2-0ubuntu0.21.04.1UNKNOWN
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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

AI Score

8.7

Confidence

High

EPSS

0.017

Percentile

87.8%