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Ubuntu: USN-4936-1 (CVE-2021-29950): Thunderbird vulnerabilities

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Ubuntu: USN-4936-1 (CVE-2021-29950): Thunderbird vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
05/06/2021
Created
05/11/2021
Added
05/07/2021
Modified
06/28/2021

Description

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From USN-4936-1:

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, or execute arbitrary code. (CVE-2021-23968, CVE-2021-23969,CVE-2021-23973,CVE-2021-23978)

It was discovered that Thunderbird may keep key material in memory in some circumstances. A local attacker could potentially exploit this to obtain private keys. (CVE-2021-29950)

Solution(s)

  • ubuntu-upgrade-thunderbird

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