This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2017-9445 →

DEBIAN-CVE-2017-9445

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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"233-10"}]}]

Debian:13 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"233-10"}]}]

Debian:14 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"233-10"}]}]

References

advisory security-tracker.debian.org