This security bulletin contains one medium risk vulnerability.
CWE-416 - Use After Free
Exploit availability: NoDescription
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the on_stream_io() and dns_stream_complete() functions in resolved-dns-stream.c, which do not increment the reference counting for the DnsStream object. A remote attacker can send to the system specially crafted DNS responses, trigger a use-after-free error and perform a denial of service (DoS) attack.
Install update from vendor's website.Vulnerable software versions
cflinuxfs3: before 0.319.0
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?