Wednesday, May 12, 2021

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

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)
  • ubuntu-upgrade-thunderbird

  • References
  • USN-4756-1
  • USN-4936-1
  • CVE-2021-29950


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