An ni_dhcp4_parse_response memory leak in openSUSE wicked 0.6.55 and earlier allows network attackers to cause a denial of service by sending DHCP4 packets without a message type option.

This update for wicked fixes the following issues :

CVE-2019-18902: Fixed a use-after-free when receiving invalid DHCP6 client options (bsc#1160903).

CVE-2019-18903: Fixed a use-after-free when receiving invalid DHCP6 IA_PD option (bsc#1160904).

CVE-2020-7216: Fixed a potential denial of service via a memory leak when processing packets with missing message type option in DHCP4 (bsc#1160905).

CVE-2020-7217: Fixed a memory leak in DHCP4 fsm when processing packets for other client ids (bsc#1160906).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for wicked fixes the following issues :

Security issues fixed :

CVE-2019-18902: Fixed a use-after-free when receiving invalid DHCP6 client options (bsc#1160903).

CVE-2019-18903: Fixed a use-after-free when receiving invalid DHCP6 IA_PD option (bsc#1160904).

CVE-2020-7216: Fixed a potential denial of service via a memory leak when processing packets with missing message type option in DHCP4 (bsc#1160905).

CVE-2020-7217: Fixed a memory leak in DHCP4 fsm when processing packets for other client ids (bsc#1160906).

Non-security issue fixed :

dhcp4: Fixed an intermittent hang during network setup by cleaning up the defer timer pointer (bsc#1142214).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for wicked fixes the following issues :

  - CVE-2019-18902: Fixed a use-after-free when receiving     invalid DHCP6 client options (bsc#1160903).

  - CVE-2020-7216: Fixed a potential denial of service via a     memory leak when processing packets with missing message     type option in DHCP4 (bsc#1160905).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

This update for wicked fixes the following issues :

CVE-2019-18902: Fixed a use-after-free when receiving invalid DHCP6 client options (bsc#1160903).

CVE-2020-7216: Fixed a potential denial of service via a memory leak when processing packets with missing message type option in DHCP4 (bsc#1160905).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
133834	SUSE SLES12 Security Update : wicked (SUSE-SU-2020:0410-1)	Nessus	SuSE Local Security Checks	critical
133599	SUSE SLED12 / SLES12 Security Update : wicked (SUSE-SU-2020:0369-1)	Nessus	SuSE Local Security Checks	critical
133596	SUSE SLES12 Security Update : wicked (SUSE-SU-2020:0358-1)	Nessus	SuSE Local Security Checks	critical
133545	SUSE SLES12 Security Update : wicked (SUSE-SU-2020:0351-1)	Nessus	SuSE Local Security Checks	critical
133491	openSUSE Security Update : wicked (openSUSE-2020-165)	Nessus	SuSE Local Security Checks	critical
133393	SUSE SLED15 / SLES15 Security Update : wicked (SUSE-SU-2020:0264-1)	Nessus	SuSE Local Security Checks	critical
133392	SUSE SLED15 / SLES15 Security Update : wicked (SUSE-SU-2020:0263-1)	Nessus	SuSE Local Security Checks	critical

Detections

Analytics

CVE-2020-7216

high

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical