CVE-2017-9445

Description

In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.

References

http://openwall.com/lists/oss-security/2017/06/27/8

http://www.securityfocus.com/bid/99302

http://www.securitytracker.com/id/1038806

https://launchpad.net/bugs/1695546

Details

Risk Information

CVSS v2

CVSS v3