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

Synopsis:          Moderate: libtiff security and bug fix update
Advisory ID:       RHSA-2021:4241-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:4241
Issue date:        2021-11-09
CVE Names:         CVE-2020-35521 CVE-2020-35522 CVE-2020-35523 
                   CVE-2020-35524 
=====================================================================

1. Summary:

An update for libtiff is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux CRB (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

The libtiff packages contain a library of functions for manipulating Tagged
Image File Format (TIFF) files.

Security Fix(es):

* libtiff: Integer overflow in tif_getimage.c (CVE-2020-35523)

* libtiff: Heap-based buffer overflow in TIFF2PDF tool (CVE-2020-35524)

* libtiff: Memory allocation failure in tiff2rgba (CVE-2020-35521)

* libtiff: Memory allocation failure in tiff2rgba (CVE-2020-35522)

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

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.5 Release Notes linked from 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

All running applications linked against libtiff must be restarted for this
update to take effect.

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

1932034 - CVE-2020-35521 libtiff: Memory allocation failure in tiff2rgba
1932037 - CVE-2020-35522 libtiff: Memory allocation failure in tiff2rgba
1932040 - CVE-2020-35523 libtiff: Integer overflow in tif_getimage.c
1932044 - CVE-2020-35524 libtiff: Heap-based buffer overflow in TIFF2PDF tool

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
libtiff-4.0.9-20.el8.src.rpm

aarch64:
libtiff-4.0.9-20.el8.aarch64.rpm
libtiff-debuginfo-4.0.9-20.el8.aarch64.rpm
libtiff-debugsource-4.0.9-20.el8.aarch64.rpm
libtiff-devel-4.0.9-20.el8.aarch64.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.aarch64.rpm

ppc64le:
libtiff-4.0.9-20.el8.ppc64le.rpm
libtiff-debuginfo-4.0.9-20.el8.ppc64le.rpm
libtiff-debugsource-4.0.9-20.el8.ppc64le.rpm
libtiff-devel-4.0.9-20.el8.ppc64le.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.ppc64le.rpm

s390x:
libtiff-4.0.9-20.el8.s390x.rpm
libtiff-debuginfo-4.0.9-20.el8.s390x.rpm
libtiff-debugsource-4.0.9-20.el8.s390x.rpm
libtiff-devel-4.0.9-20.el8.s390x.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.s390x.rpm

x86_64:
libtiff-4.0.9-20.el8.i686.rpm
libtiff-4.0.9-20.el8.x86_64.rpm
libtiff-debuginfo-4.0.9-20.el8.i686.rpm
libtiff-debuginfo-4.0.9-20.el8.x86_64.rpm
libtiff-debugsource-4.0.9-20.el8.i686.rpm
libtiff-debugsource-4.0.9-20.el8.x86_64.rpm
libtiff-devel-4.0.9-20.el8.i686.rpm
libtiff-devel-4.0.9-20.el8.x86_64.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.i686.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.x86_64.rpm

Red Hat Enterprise Linux CRB (v. 8):

aarch64:
libtiff-debuginfo-4.0.9-20.el8.aarch64.rpm
libtiff-debugsource-4.0.9-20.el8.aarch64.rpm
libtiff-tools-4.0.9-20.el8.aarch64.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.aarch64.rpm

ppc64le:
libtiff-debuginfo-4.0.9-20.el8.ppc64le.rpm
libtiff-debugsource-4.0.9-20.el8.ppc64le.rpm
libtiff-tools-4.0.9-20.el8.ppc64le.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.ppc64le.rpm

s390x:
libtiff-debuginfo-4.0.9-20.el8.s390x.rpm
libtiff-debugsource-4.0.9-20.el8.s390x.rpm
libtiff-tools-4.0.9-20.el8.s390x.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.s390x.rpm

x86_64:
libtiff-debuginfo-4.0.9-20.el8.x86_64.rpm
libtiff-debugsource-4.0.9-20.el8.x86_64.rpm
libtiff-tools-4.0.9-20.el8.x86_64.rpm
libtiff-tools-debuginfo-4.0.9-20.el8.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-2020-35521
https://access.redhat.com/security/cve/CVE-2020-35522
https://access.redhat.com/security/cve/CVE-2020-35523
https://access.redhat.com/security/cve/CVE-2020-35524
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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