ESB-2018.2031 - [RedHat] gnupg2: Provide misleading information - Remote/unauthenticated 2018-07-12

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PGP/GPG verifiable version

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2031
                          gnupg2 security update
                               12 July 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           gnupg2
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 6
                   Red Hat Enterprise Linux WS/Desktop 6
                   Red Hat Enterprise Linux Server 7
                   Red Hat Enterprise Linux WS/Desktop 7
Impact/Access:     Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-12020  

Reference:         ESB-2018.1722
                   ESB-2018.1728.3

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2018:2180
   https://access.redhat.com/errata/RHSA-2018:2181

Comment: This bulletin contains two (2) Red Hat security advisories.

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: gnupg2 security update
Advisory ID:       RHSA-2018:2180-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:2180
Issue date:        2018-07-11
CVE Names:         CVE-2018-12020 
=====================================================================

1. Summary:

An update for gnupg2 is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and
creating digital signatures, compliant with OpenPGP and S/MIME standards.

Security Fix(es):

* gnupg2: Improper sanitization of filenames allows for the display of fake
status messages and the bypass of signature verification (CVE-2018-12020)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1589620 - CVE-2018-12020 gnupg2: Improper sanitization of filenames allows for the display of fake status messages and the bypass of signature verification

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
gnupg2-2.0.14-9.el6_10.src.rpm

i386:
gnupg2-2.0.14-9.el6_10.i686.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.i686.rpm

x86_64:
gnupg2-2.0.14-9.el6_10.x86_64.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

i386:
gnupg2-debuginfo-2.0.14-9.el6_10.i686.rpm
gnupg2-smime-2.0.14-9.el6_10.i686.rpm

x86_64:
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm
gnupg2-smime-2.0.14-9.el6_10.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
gnupg2-2.0.14-9.el6_10.src.rpm

x86_64:
gnupg2-2.0.14-9.el6_10.x86_64.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

x86_64:
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm
gnupg2-smime-2.0.14-9.el6_10.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
gnupg2-2.0.14-9.el6_10.src.rpm

i386:
gnupg2-2.0.14-9.el6_10.i686.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.i686.rpm

ppc64:
gnupg2-2.0.14-9.el6_10.ppc64.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.ppc64.rpm

s390x:
gnupg2-2.0.14-9.el6_10.s390x.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.s390x.rpm

x86_64:
gnupg2-2.0.14-9.el6_10.x86_64.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

i386:
gnupg2-debuginfo-2.0.14-9.el6_10.i686.rpm
gnupg2-smime-2.0.14-9.el6_10.i686.rpm

ppc64:
gnupg2-debuginfo-2.0.14-9.el6_10.ppc64.rpm
gnupg2-smime-2.0.14-9.el6_10.ppc64.rpm

s390x:
gnupg2-debuginfo-2.0.14-9.el6_10.s390x.rpm
gnupg2-smime-2.0.14-9.el6_10.s390x.rpm

x86_64:
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm
gnupg2-smime-2.0.14-9.el6_10.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
gnupg2-2.0.14-9.el6_10.src.rpm

i386:
gnupg2-2.0.14-9.el6_10.i686.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.i686.rpm

x86_64:
gnupg2-2.0.14-9.el6_10.x86_64.rpm
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

i386:
gnupg2-debuginfo-2.0.14-9.el6_10.i686.rpm
gnupg2-smime-2.0.14-9.el6_10.i686.rpm

x86_64:
gnupg2-debuginfo-2.0.14-9.el6_10.x86_64.rpm
gnupg2-smime-2.0.14-9.el6_10.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-12020
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: gnupg2 security update
Advisory ID:       RHSA-2018:2181-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:2181
Issue date:        2018-07-11
CVE Names:         CVE-2018-12020 
=====================================================================

1. Summary:

An update for gnupg2 is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x

3. Description:

The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and
creating digital signatures, compliant with OpenPGP and S/MIME standards.

Security Fix(es):

* gnupg2: Improper sanitization of filenames allows for the display of fake
status messages and the bypass of signature verification (CVE-2018-12020)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1589620 - CVE-2018-12020 gnupg2: Improper sanitization of filenames allows for the display of fake status messages and the bypass of signature verification

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
gnupg2-2.0.22-5.el7_5.src.rpm

x86_64:
gnupg2-2.0.22-5.el7_5.x86_64.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm
gnupg2-smime-2.0.22-5.el7_5.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
gnupg2-2.0.22-5.el7_5.src.rpm

x86_64:
gnupg2-2.0.22-5.el7_5.x86_64.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm
gnupg2-smime-2.0.22-5.el7_5.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
gnupg2-2.0.22-5.el7_5.src.rpm

ppc64:
gnupg2-2.0.22-5.el7_5.ppc64.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.ppc64.rpm

ppc64le:
gnupg2-2.0.22-5.el7_5.ppc64le.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.ppc64le.rpm

s390x:
gnupg2-2.0.22-5.el7_5.s390x.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.s390x.rpm

x86_64:
gnupg2-2.0.22-5.el7_5.x86_64.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
gnupg2-2.0.22-5.el7_5.src.rpm

aarch64:
gnupg2-2.0.22-5.el7_5.aarch64.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.aarch64.rpm

ppc64le:
gnupg2-2.0.22-5.el7_5.ppc64le.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.ppc64le.rpm

s390x:
gnupg2-2.0.22-5.el7_5.s390x.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.s390x.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
gnupg2-debuginfo-2.0.22-5.el7_5.ppc64.rpm
gnupg2-smime-2.0.22-5.el7_5.ppc64.rpm

ppc64le:
gnupg2-debuginfo-2.0.22-5.el7_5.ppc64le.rpm
gnupg2-smime-2.0.22-5.el7_5.ppc64le.rpm

s390x:
gnupg2-debuginfo-2.0.22-5.el7_5.s390x.rpm
gnupg2-smime-2.0.22-5.el7_5.s390x.rpm

x86_64:
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm
gnupg2-smime-2.0.22-5.el7_5.x86_64.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
gnupg2-debuginfo-2.0.22-5.el7_5.aarch64.rpm
gnupg2-smime-2.0.22-5.el7_5.aarch64.rpm

ppc64le:
gnupg2-debuginfo-2.0.22-5.el7_5.ppc64le.rpm
gnupg2-smime-2.0.22-5.el7_5.ppc64le.rpm

s390x:
gnupg2-debuginfo-2.0.22-5.el7_5.s390x.rpm
gnupg2-smime-2.0.22-5.el7_5.s390x.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
gnupg2-2.0.22-5.el7_5.src.rpm

x86_64:
gnupg2-2.0.22-5.el7_5.x86_64.rpm
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
gnupg2-debuginfo-2.0.22-5.el7_5.x86_64.rpm
gnupg2-smime-2.0.22-5.el7_5.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-12020
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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