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FS#60623 - [systemd] CVE-2018-15688 systemd-networkd remote heap overflow

Attached to Project: Arch Linux
Opened by loqs (loqs) - Sunday, 28 October 2018, 17:07 GMT
Last edited by Dave Reisner (falconindy) - Sunday, 28 October 2018, 17:10 GMT
Task Type Bug Report
Category Security
Status Closed
Assigned To No-one
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No


It was discovered that systemd-networkd does not correctly keep track of a buffer size when constructing DHCPv6 packets. This flaw may lead to an integer underflow that can be used to produce an heap-based buffer overflow. A malicious host on the same network segment as the victim's one may advertise itself as a DHCPv6 server and exploit this flaw to cause a Denial of Service or potentially gain code execution on the victim's machine.

Additional info:
* 239.2-1
CVE-2018-6954, CVE-2018-15687 and CVE-2018-15686 are also outstanding for systemd according to
This task depends upon

Closed by  Dave Reisner (falconindy)
Sunday, 28 October 2018, 17:10 GMT
Reason for closing:  Duplicate
Additional comments about closing:   FS#60609