A connman security update has been released for SUSE Linux Enterprise 15 SP2.

openSUSE-SU-2021:0452-1: moderate: Security update for connman

openSUSE Security Update: Security update for connman
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Announcement ID: openSUSE-SU-2021:0452-1
Rating: moderate
References: #1181751
Cross-References: CVE-2021-26675 CVE-2021-26676
CVSS scores:
CVE-2021-26675 (NVD) : 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-26676 (NVD) : 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Products:
openSUSE Backports SLE-15-SP2
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An update that fixes two vulnerabilities is now available.

Description:

This update for connman fixes the following issues:

Update to 1.39 (boo#1181751):

* Fix issue with scanning state synchronization and iwd.
* Fix issue with invalid key with 4-way handshake offloading.
* Fix issue with DNS proxy length checks to prevent buffer overflow.
(CVE-2021-26675)
* Fix issue with DHCP leaking stack data via uninitialized variable.
(CVE-2021-26676)

Update to 1.38:

* Fix issue with online check on IP address update.
* Fix issue with OpenVPN and encrypted private keys.
* Fix issue with finishing of VPN connections.
* Add support for updated stable iwd APIs.
* Add support for WireGuard networks.

Update to 1.37:

* Fix issue with handling invalid gateway addresses.
* Fix issue with handling updates of default gateway.
* Fix issue with DHCP servers that require broadcast flag.
* Add support for option to use gateways as time servers.
* Add support for option to select default technology.
* Add support for Address Conflict Detection (ACD).
* Add support for IPv6 iptables management.

Change in 1.36:

* Fix issue with DNS short response on error handling.
* Fix issue with handling incoming DNS requests.
* Fix issue with handling empty timeserver list.
* Fix issue with incorrect DHCP byte order.
* Fix issue with AllowDomainnameUpdates handling.
* Fix issue with IPv4 link-local IP conflict error.
* Fix issue with handling WISPr over TLS connections.
* Fix issue with WiFi background scanning handling.
* Fix issue with WiFi disconnect+connect race condition.
* Fix issue with WiFi scanning and tethering operation.
* Fix issue with WiFi security change handling.
* Fix issue with missing signal for WPS changes.
* Fix issue with online check retry handling.
* Add support for systemd-resolved backend.
* Add support for mDNS configuration setup.

This update was imported from the openSUSE:Leap:15.2:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Backports SLE-15-SP2:

zypper in -t patch openSUSE-2021-452=1


Package List:

- openSUSE Backports SLE-15-SP2 (x86_64):

connman-1.39-bp152.4.3.1
connman-client-1.39-bp152.4.3.1
connman-devel-1.39-bp152.4.3.1
connman-doc-1.39-bp152.4.3.1
connman-nmcompat-1.39-bp152.4.3.1
connman-plugin-hh2serial-gps-1.39-bp152.4.3.1
connman-plugin-iospm-1.39-bp152.4.3.1
connman-plugin-l2tp-1.39-bp152.4.3.1
connman-plugin-openconnect-1.39-bp152.4.3.1
connman-plugin-openvpn-1.39-bp152.4.3.1
connman-plugin-polkit-1.39-bp152.4.3.1
connman-plugin-pptp-1.39-bp152.4.3.1
connman-plugin-tist-1.39-bp152.4.3.1
connman-plugin-vpnc-1.39-bp152.4.3.1
connman-plugin-wireguard-1.39-bp152.4.3.1
connman-test-1.39-bp152.4.3.1

References:

  https://www.suse.com/security/cve/CVE-2021-26675.html
  https://www.suse.com/security/cve/CVE-2021-26676.html
  https://bugzilla.suse.com/1181751