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AUSCERT External Security Bulletin Redistribution
ESB-2020.3874
libexif security, bug fix, and enhancement update
6 November 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libexif
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Increased Privileges -- Remote with User Interaction
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-13114 CVE-2020-13113 CVE-2020-12767
CVE-2020-0198 CVE-2020-0182 CVE-2020-0181
CVE-2020-0093 CVE-2019-9278
Reference: ASB-2019.0248
ESB-2020.3402
ESB-2020.2074
ESB-2020.2059
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:4766
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Red Hat Security Advisory
Synopsis: Moderate: libexif security, bug fix, and enhancement update
Advisory ID: RHSA-2020:4766-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4766
Issue date: 2020-11-03
CVE Names: CVE-2019-9278 CVE-2020-0093 CVE-2020-0181
CVE-2020-0182 CVE-2020-0198 CVE-2020-12767
CVE-2020-13113 CVE-2020-13114
=====================================================================
1. Summary:
An update for libexif 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 CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
3. Description:
The libexif packages provide a library for extracting extra information
from image files.
The following packages have been upgraded to a later upstream version:
libexif (0.6.22). (BZ#1841320)
Security Fix(es):
* libexif: out of bounds write in exif-data.c (CVE-2019-9278)
* libexif: out of bounds read due to a missing bounds check in
exif_data_save_data_entry function in exif-data.c (CVE-2020-0093)
* libexif: integer overflow in exif_data_load_data_thumbnail function in
exif-data.c (CVE-2020-0181)
* libexif: integer overflow in exif_data_load_data_content function in
exif-data.c (CVE-2020-0198)
* libexif: use of uninitialized memory in EXIF Makernote handling can lead
to crashes and use-after-free (CVE-2020-13113)
* libexif: unrestricted size in handling Canon EXIF MakerNote data can lead
to consumption of large amounts of compute time (CVE-2020-13114)
* libexif: out of bounds read due to a missing bounds check in
exif_entry_get_value function in exif-entry.c (CVE-2020-0182)
* libexif: divide-by-zero in exif_entry_get_value function in exif-entry.c
(CVE-2020-12767)
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 8.3 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
5. Bugs fixed (https://bugzilla.redhat.com/):
1789031 - CVE-2019-9278 libexif: out of bounds write in exif-data.c
1834950 - CVE-2020-12767 libexif: divide-by-zero in exif_entry_get_value function in exif-entry.c
1840347 - CVE-2020-13113 libexif: use of uninitialized memory in EXIF Makernote handling can lead to crashes and use-after-free
1840350 - CVE-2020-13114 libexif: unrestricted size in handling Canon EXIF MakerNote data can lead to consumption of large amounts of compute time
1841320 - Rebase to libexif 0.6.22
1847131 - CVE-2020-0181 libexif: integer overflow in exif_data_load_data_thumbnail function in exif-data.c
1847133 - CVE-2020-0198 libexif: integer overflow in exif_data_load_data_content function in exif-data.c
1852487 - CVE-2020-0093 libexif: out of bounds read due to a missing bounds check in exif_data_save_data_entry function in exif-data.c
1852490 - CVE-2020-0182 libexif: out of bounds read due to a missing bounds check in exif_entry_get_value function in exif-entry.c
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
libexif-0.6.22-4.el8.src.rpm
aarch64:
libexif-0.6.22-4.el8.aarch64.rpm
libexif-debuginfo-0.6.22-4.el8.aarch64.rpm
libexif-debugsource-0.6.22-4.el8.aarch64.rpm
ppc64le:
libexif-0.6.22-4.el8.ppc64le.rpm
libexif-debuginfo-0.6.22-4.el8.ppc64le.rpm
libexif-debugsource-0.6.22-4.el8.ppc64le.rpm
s390x:
libexif-0.6.22-4.el8.s390x.rpm
libexif-debuginfo-0.6.22-4.el8.s390x.rpm
libexif-debugsource-0.6.22-4.el8.s390x.rpm
x86_64:
libexif-0.6.22-4.el8.i686.rpm
libexif-0.6.22-4.el8.x86_64.rpm
libexif-debuginfo-0.6.22-4.el8.i686.rpm
libexif-debuginfo-0.6.22-4.el8.x86_64.rpm
libexif-debugsource-0.6.22-4.el8.i686.rpm
libexif-debugsource-0.6.22-4.el8.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 8):
aarch64:
libexif-debuginfo-0.6.22-4.el8.aarch64.rpm
libexif-debugsource-0.6.22-4.el8.aarch64.rpm
libexif-devel-0.6.22-4.el8.aarch64.rpm
ppc64le:
libexif-debuginfo-0.6.22-4.el8.ppc64le.rpm
libexif-debugsource-0.6.22-4.el8.ppc64le.rpm
libexif-devel-0.6.22-4.el8.ppc64le.rpm
s390x:
libexif-debuginfo-0.6.22-4.el8.s390x.rpm
libexif-debugsource-0.6.22-4.el8.s390x.rpm
libexif-devel-0.6.22-4.el8.s390x.rpm
x86_64:
libexif-debuginfo-0.6.22-4.el8.i686.rpm
libexif-debuginfo-0.6.22-4.el8.x86_64.rpm
libexif-debugsource-0.6.22-4.el8.i686.rpm
libexif-debugsource-0.6.22-4.el8.x86_64.rpm
libexif-devel-0.6.22-4.el8.i686.rpm
libexif-devel-0.6.22-4.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-2019-9278
https://access.redhat.com/security/cve/CVE-2020-0093
https://access.redhat.com/security/cve/CVE-2020-0181
https://access.redhat.com/security/cve/CVE-2020-0182
https://access.redhat.com/security/cve/CVE-2020-0198
https://access.redhat.com/security/cve/CVE-2020-12767
https://access.redhat.com/security/cve/CVE-2020-13113
https://access.redhat.com/security/cve/CVE-2020-13114
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_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 2020 Red Hat, Inc.
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