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Ubuntu: (Multiple Advisories) (CVE-2022-2526): systemd regression

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Ubuntu: (Multiple Advisories) (CVE-2022-2526): systemd regression

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/25/2022
Created
08/31/2022
Added
08/30/2022
Modified
09/22/2022

Description

A use-after-free vulnerability was found in systemd. This issue occurs due to the on_stream_io() function and dns_stream_complete() function in 'resolved-dns-stream.c' not incrementing the reference counting for the DnsStream object. Therefore, other functions and callbacks called can dereference the DNSStream object, causing the use-after-free when the reference is still used later.

Solution(s)

  • ubuntu-upgrade-systemd

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