CVE-2018-12020

Upstream information

CVE-2018-12020 at MITRE

Description

mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
	National Vulnerability Database
Base Score	5
Vector	AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector	Network
Access Complexity	Low
Authentication	None
Confidentiality Impact	None
Integrity Impact	Partial
Availability Impact	None

CVSS v3 Scores
	SUSE
Base Score	7.3
Vector	AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Access Vector	Network
Access Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	Low
Integrity Impact	Low
Availability Impact	Low

Note from the SUSE Security Team

This issue affects the GnuPG CLI in non-default configurations. While zypper/libzypp use GnuPG for repository signature verification, they are not affected: In SLE 12 and earlier, verbose output is not configured or requested via the command line. In SLE 15, libzypp uses gpgme as an interface to GnuPG.

SUSE Bugzilla entries: 1096745 [RESOLVED / FIXED], 1101134 [REOPENED]

SUSE Security Advisories:

SUSE-SU-2018:1696-1, published Fri Jun 15 04:11:09 MDT 2018
SUSE-SU-2018:1698-1, published Fri Jun 15 10:08:40 MDT 2018
SUSE-SU-2018:1698-2, published Thu Oct 18 10:11:35 MDT 2018
SUSE-SU-2018:1814-1, published Tue Jun 26 07:08:06 MDT 2018
SUSE-SU-2018:2243-1, published Tue Aug 7 13:25:48 MDT 2018
openSUSE-SU-2018:1706-1, published Fri, 15 Jun 2018 21:11:18 +0200 (CEST)
openSUSE-SU-2018:1708-1, published Fri, 15 Jun 2018 21:12:53 +0200 (CEST)
openSUSE-SU-2018:1722-1, published Sat, 16 Jun 2018 15:12:27 +0200 (CEST)
openSUSE-SU-2018:1724-1, published Sat, 16 Jun 2018 15:13:42 +0200 (CEST)

List of released packages

Product(s)	Fixed package version(s)	References
Openstack Cloud Magnum Orchestration 7	`gpg2 >= 2.0.24-9.3.1`	Patchnames: SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-1141
SUSE CaaS Platform ALL	`gpg2 >= 2.0.24-9.3.1`	Patchnames: SUSE-CAASP-ALL-2018-1141
SUSE Enterprise Storage 4	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-Storage-4-2018-1141
SUSE Linux Enterprise Desktop 12 SP3	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-DESKTOP-12-SP3-2018-1141
SUSE Linux Enterprise Module for Basesystem 15	`gpg2 >= 2.2.5-4.3.1` `gpg2-lang >= 2.2.5-4.3.1`	Patchnames: SUSE-SLE-Module-Basesystem-15-2018-1223
SUSE Linux Enterprise Point of Sale 11 SP3	`gpg2 >= 2.0.9-25.33.42.3.1` `gpg2-lang >= 2.0.9-25.33.42.3.1`	Patchnames: sleposp3-gpg2-13655
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-POS-12-SP2-CLIENT-2018-1141
SUSE Linux Enterprise Server 11 SP3-LTSS	`gpg2 >= 2.0.9-25.33.42.3.1` `gpg2-lang >= 2.0.9-25.33.42.3.1`	Patchnames: slessp3-gpg2-13655
SUSE Linux Enterprise Server 11 SP4	`gpg2 >= 2.0.9-25.33.42.3.1` `gpg2-lang >= 2.0.9-25.33.42.3.1`	Patchnames: slessp4-gpg2-13655
SUSE Linux Enterprise Server 12 SP1-LTSS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP1-2018-1141
SUSE Linux Enterprise Server 12 SP2-BCL	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP2-BCL-2018-1141
SUSE Linux Enterprise Server 12 SP2-ESPOS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP2-ESPOS-2018-1141
SUSE Linux Enterprise Server 12 SP2-LTSS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP2-2018-1141
SUSE Linux Enterprise Server 12 SP3	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP3-2018-1141
SUSE Linux Enterprise Server 12-LTSS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-2018-1141
SUSE Linux Enterprise Server for SAP Applications 11 SP3-LTSS	`gpg2 >= 2.0.9-25.33.42.3.1` `gpg2-lang >= 2.0.9-25.33.42.3.1`	Patchnames: slessp3-gpg2-13655
SUSE Linux Enterprise Server for SAP Applications 11 SP4	`gpg2 >= 2.0.9-25.33.42.3.1` `gpg2-lang >= 2.0.9-25.33.42.3.1`	Patchnames: slessp4-gpg2-13655
SUSE Linux Enterprise Server for SAP Applications 12 SP1	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SAP-12-SP1-2018-1141
SUSE Linux Enterprise Server for SAP Applications 12 SP1-LTSS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP1-2018-1141
SUSE Linux Enterprise Server for SAP Applications 12 SP2	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SAP-12-SP2-2018-1141
SUSE Linux Enterprise Server for SAP Applications 12 SP2-BCL	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP2-BCL-2018-1141
SUSE Linux Enterprise Server for SAP Applications 12 SP2-ESPOS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP2-ESPOS-2018-1141
SUSE Linux Enterprise Server for SAP Applications 12 SP2-LTSS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP2-2018-1141
SUSE Linux Enterprise Server for SAP Applications 12 SP3	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-SP3-2018-1141
SUSE Linux Enterprise Server for SAP Applications 12-LTSS	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-SLE-SERVER-12-2018-1141
SUSE Linux Enterprise Workstation Extension 15	`enigmail >= 2.0.7-3.7.2`	Patchnames: SUSE-SLE-Product-WE-15-2018-1514
SUSE OpenStack Cloud 7	`gpg2 >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: SUSE-OpenStack-Cloud-7-2018-1141
SUSE Package Hub for SUSE Linux Enterprise 12	`enigmail >= 2.0.7-18.1`	Patchnames: openSUSE-2018-630
openSUSE Leap 15.0	`enigmail >= 2.0.7-lp150.2.12.1` `gpg2 >= 2.2.5-lp150.3.3.1` `gpg2-debuginfo >= 2.2.5-lp150.3.3.1` `gpg2-debugsource >= 2.2.5-lp150.3.3.1` `gpg2-lang >= 2.2.5-lp150.3.3.1` `python-python-gnupg >= 0.4.3-lp150.2.3.1` `python2-python-gnupg >= 0.4.3-lp150.2.3.1` `python3-python-gnupg >= 0.4.3-lp150.2.3.1`	Patchnames: openSUSE-2018-630 openSUSE-2018-640 openSUSE-2018-646
openSUSE Leap 42.3	`enigmail >= 2.0.7-21.1` `gpg2 >= 2.0.24-9.3.1` `gpg2-debuginfo >= 2.0.24-9.3.1` `gpg2-debugsource >= 2.0.24-9.3.1` `gpg2-lang >= 2.0.24-9.3.1`	Patchnames: openSUSE-2018-630 openSUSE-2018-640

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s)	Source package	State
CaaS Platform 2.0	gpg2	Released
CaaS Platform 3.0	gpg2	Released
OpenStack Cloud Magnum Orchestration 7.0	gpg2	Released
SUSE Linux Enterprise Desktop 12 SP3	gpg2	Released
SUSE Linux Enterprise Module for Basesystem 15 GA	gpg2	Released
SUSE Linux Enterprise Server 11 SP3 LTSS	gpg2	Released
SUSE Linux Enterprise Server 11 SP4	gpg2	Released
SUSE Linux Enterprise Server 12 GA LTSS	gpg2	Released
SUSE Linux Enterprise Server 12 SP1 LTSS	gpg2	Released
SUSE Linux Enterprise Server 12 SP2 LTSS	gpg2	Released
SUSE Linux Enterprise Server 12 SP3	gpg2	Released
SUSE Linux Enterprise Server for SAP Applications 12 SP2	gpg2	Released
SUSE Linux Enterprise Workstation Extension 15 GA	enigmail	Released