wicked: Use-after-free when receiving invalid DHCP6 IA_PD option

published 2020-03-02 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8584

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.4%; EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits: 0; none known

A Use After Free vulnerability in wicked of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15; openSUSE Leap 15.1, Factory allows remote attackers to cause DoS or potentially code execution. This issue affects: SUSE Linux Enterprise Server 12 wicked versions prior to 0.6.60-2.18.1. SUSE Linux Enterprise Server 15 wicked versions prior to 0.6.60-28.26.1. openSUSE Leap 15.1 wicked versions prior to 0.6.60-lp151.2.9.1. openSUSE Factory wicked versions prior to 0.6.62.

Patch / fix

fixed in 4 distros 2

SUSE SUSE Linux Enterprise Server 12 0.6.60-2.18.1
SUSE SUSE Linux Enterprise Server 15 0.6.60-28.26.1
openSUSE Leap 15.1 0.6.60-lp151.2.9.1
openSUSE Factory 0.6.62

suse opensuse

wicked SLES for SAP 15, SLES 15-LTSS, SLE Module for Basesystem 15 +2 more 0.6.60-3.24.1
wicked SLES for SAP 12 SP4, SLES 12 SP4, SLED 12 SP4 0.6.60-2.18.1
wicked SLES for SAP 12 SP5, SLES 12 SP5 0.6.60-3.5.1
wicked SLE Module for Basesystem 15 SP1 0.6.60-3.13.1
wicked SLES for SAP 12 SP1, SLES 12 SP1-LTSS 0.6.60-28.26.1

suse advisories SUSE-SU-2020:0370-1 SUSE-SU-2020:0369-1 SUSE-SU-2020:0358-1 SUSE-SU-2020:0351-1 SUSE-SU-2020:0347-1

wicked openSUSE Tumbleweed 0.6.66-1.2
wicked openSUSE Leap 15.1 0.6.60-lp151.2.9.1

opensuse advisories openSUSE-SU-2024:11511-1 openSUSE-SU-2020:0207-1

Exploit prediction

2.42% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

SUSE SUSE Linux Enterprise Server 12
SUSE SUSE Linux Enterprise Server 15
openSUSE Leap 15.1
openSUSE Factory

Classification

Weakness

CWE-416 Use After Free

References

bugzilla.suse.com /show_bug.cgi?id=1160904
issue-tracking, vendor-advisory

Sources

CVE List CVE-2019-18903
NVD CVE-2019-18903

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary