Bug#912008: systemd: CVE-2018-15688: Out-of-bounds heap write in systemd-networkd dhcpv6 option handling

[Salvatore Bonaccorso]

Source: systemd
Version: 232-25
Severity: important
Tags: security upstream
Control: found -1 232-25+deb9u4
Control: found -1 239-10

Hi,

The following vulnerability was published for systemd.

CVE-2018-15688[0]:
| A buffer overflow vulnerability in the dhcp6 client of systemd allows
| a malicious dhcp6 server to overwrite heap memory in systemd-networkd.
| Affected releases are systemd: versions up to and including 239.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2018-15688
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15688
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1639067
[2] https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1795921
[3] https://github.com/systemd/systemd/commit/49653743f69658aeeebdb14faf1ab158f1f2cb20

Please adjust the affected versions in the BTS as needed, both stretch
up to sid should be affected source wise, we do though not enable
systemd-networkd by default.

Regards,
Salvatore