CVE-2017-9445

HIGH7.5

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

Published Jun 28, 2017

Modified 1 years ago

Details

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

WEB

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

WEB

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

WEB

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

WEB

https://launchpad.net/bugs/1695546

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2017-9445

CVSS Analysis