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ubuntucveUbuntu.comUB:CVE-2021-43529
HistoryFeb 16, 2023 - 12:00 a.m.

CVE-2021-43529

2023-02-1600:00:00
ubuntu.com
ubuntu.com
42
thunderbird
vulnerability
heap overflow
s/mime
processing
cve-2021-43529
mozilla
certificates
der-encoded dsa
rsa-pss
bugzilla
unix

CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

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

EPSS

0.008

Percentile

81.4%

JSON

Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow
described in CVE-2021-43527 when processing S/MIME messages. Thunderbird
versions 91.3.0 and later will not call the vulnerable code when processing
S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS
signatures.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchthunderbird< 1:91.5.0+build1-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchthunderbird< 1:91.5.0+build1-0ubuntu0.20.04.1UNKNOWN

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CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

9.8

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

EPSS

0.008

Percentile

81.4%

JSON
Related for UB:CVE-2021-43529
redhatcve2cve2debiancve2cvelist2ubuntucve1f52prion2nvd2veracode2nessus68amazon6osv10debian3redhat16cbl_mariner2openvas35archlinux2ibm1photon6mageia1ubuntu4oraclelinux3alpinelinux1suse4cnvd1fedora2thn1mozilla2freebsd1cloudfoundry1centos1rocky1slackware2cloudlinux2almalinux1googleprojectzero1trellix2gentoo1rosalinux1