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Ubuntu: USN-4893-1 (CVE-2021-23983): Firefox vulnerabilities

Severity:
4
CVSS:
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published:
03/25/2021
Created:
03/30/2021
Added:
03/26/2021
Modified:
03/26/2021

Description:

It was discovered that extensions could read the response of cross origin requests in some circumstances. If a user were tricked into installing a specially crafted extension, an attacker could potentially exploit this to obtain sensitive information. (CVE-2021-23986)'

Solution(s)


  • ubuntu-upgrade-firefox

Reference(s)

  • CESA-2021:0990
  • CESA-2021:0992
  • CESA-2021:0993
  • CESA-2021:0996
  • CVE-2021-23987
  • DSA-4875
  • CVE-2021-3449
  • USN-4893-1
  • CVE-2021-23981
  • USN-4893-1
  • CVE-2021-23983
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