The details of this vulnerability were not disclosed by him and said that the code for proving the PoC was short, including a tweet was enough. Barkın Kılıç, a researcher from Turkey, posted the PoC code on Twitter.
Red Hat confirmed that this vulnerability affects Red Hat Linux 6 and 7 and everyone who is using affected DHCP clients should update the latest version immediately.
'Users should disable or delete affected scripts, but this will prevent some configurations from being given by the DHCP server to the machine, such as the NTP address or NIS server , ' Red Hat said.
Fedora also released new HDCP versions that fix bugs for Fedora 26, 27 and 28.
Other Linux kernels such as OpenSUSE or Ubuntu are not affected by DHCP not using the NetworkManager script by default.
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