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ubuntuUbuntuUSN-4671-1
HistoryDec 15, 2020 - 12:00 a.m.

Firefox vulnerabilities

2020-12-1500:00:00
ubuntu.com
95

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

9 High

AI Score

Confidence

Low

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

0.006 Low

EPSS

Percentile

78.1%

Releases

  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 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, bypass the CSS sanitizer, bypass security restrictions,
spoof the URL bar, or execute arbitrary code. (CVE-2020-16042,
CVE-2020-26971, CVE-2020-26972, CVE-2020-26793, CVE-2020-26974,
CVE-2020-26976, CVE-2020-26978, CVE-2020-26979,
CVE-2020-35113, CVE-2020-35114)

It was discovered that the proxy.onRequest API did not catch
view-source URLs. If a user were tricked in to installing an
extension with the proxy permission and opening View Source, an
attacker could potentially exploit this to obtain sensitive
information. (CVE-2020-35111)

OSVersionArchitecturePackageVersionFilename
Ubuntu20.10noarchfirefox< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-dbg< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-dev< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-geckodriver< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-locale-af< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-locale-an< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-locale-ar< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-locale-as< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-locale-ast< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Ubuntu20.10noarchfirefox-locale-az< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
Rows per page:
1-10 of 3901

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

9 High

AI Score

Confidence

Low

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

0.006 Low

EPSS

Percentile

78.1%