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PRIOn knowledge basePRION:CVE-2022-2526HistorySep 09, 2022 - 3:15 p.m.
Design/Logic Flaw
2022-09-0915:15:00
PRIOn knowledge base
www.prio-n.com
8
systemd
use-after-free vulnerability
design flaw
logic flaw
resolved-dns-stream.c
dnsstream object
reference counting
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.
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