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Red Hat: CVE-2021-43535: CVE-2021-43535 Mozilla: Use-after-free in HTTP2 Session object (Multiple Advisories)

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Red Hat: CVE-2021-43535: CVE-2021-43535 Mozilla: Use-after-free in HTTP2 Session object (Multiple Advisories)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
12/08/2021
Created
03/01/2022
Added
02/28/2022
Modified
12/15/2023

Description

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.

Solution(s)

  • redhat-upgrade-firefox
  • redhat-upgrade-firefox-debuginfo
  • redhat-upgrade-firefox-debugsource
  • redhat-upgrade-thunderbird
  • redhat-upgrade-thunderbird-debuginfo
  • redhat-upgrade-thunderbird-debugsource

References

  • DSA-5026
  • DSA-5034
  • CVE-2021-43535
  • RHSA-2021:4116
  • RHSA-2021:4123
  • RHSA-2021:4130
  • RHSA-2021:4132
  • RHSA-2021:4133
  • RHSA-2021:4134
  • RHSA-2021:4605
  • RHSA-2021:4607
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