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ubuntuUbuntuUSN-5168-2
HistoryDec 01, 2021 - 12:00 a.m.

Thunderbird vulnerability

2021-12-0100:00:00
ubuntu.com
49

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

10 High

AI Score

Confidence

High

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

0.005 Low

EPSS

Percentile

76.8%

Releases

  • Ubuntu 21.10
  • Ubuntu 21.04
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • thunderbird - Mozilla Open Source mail and newsgroup client

Details

Tavis Ormandy discovered that NSS, included with Thunderbird, incorrectly
handled verifying DSA/RSA-PSS signatures. A remote attacker could use this
issue to cause Thunderbird to crash, resulting in a denial of service, or
possibly execute arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu21.10noarchthunderbird< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-dbg< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-dev< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-gnome-support< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-gnome-support-dbg< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-locale-af< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-locale-ar< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-locale-ast< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-locale-be< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
Ubuntu21.10noarchthunderbird-locale-bg< 1:91.3.1+build1-0ubuntu0.21.10.2UNKNOWN
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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

10 High

AI Score

Confidence

High

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

0.005 Low

EPSS

Percentile

76.8%