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Test ID:1.3.6.1.4.1.25623.1.0.892214
Category:Debian Local Security Checks
Title:Debian LTS: Security Advisory for libexif (DLA-2214-1)
Summary:The remote host is missing an update for the 'libexif'; package(s) announced via the DLA-2214-1 advisory.
Description:Summary:
The remote host is missing an update for the 'libexif'
package(s) announced via the DLA-2214-1 advisory.

Vulnerability Insight:
Various vulnerabilities have been addressed in libexif, a library to
parse EXIF metadata files.

CVE-2016-6328

An integer overflow when parsing the MNOTE entry data of the input
file had been found. This could have caused Denial-of-Service (DoS)
and Information Disclosure (disclosing some critical heap chunk
metadata, even other applications' private data).

CVE-2017-7544

libexif had been vulnerable to out-of-bounds heap read vulnerability
in exif_data_save_data_entry function in libexif/exif-data.c caused
by improper length computation of the allocated data of an ExifMnote
entry which could have caused denial-of-service or possibly information
disclosure.

CVE-2018-20030

An error when processing the EXIF_IFD_INTEROPERABILITY and
EXIF_IFD_EXIF tags within libexif version could have been exploited
to exhaust available CPU resources.

CVE-2020-0093

In exif_data_save_data_entry of exif-data.c, there was a possible out
of bounds read due to a missing bounds check. This could have lead to
local information disclosure with no additional execution privileges
needed. User interaction was needed for exploitation.

CVE-2020-12767

libexif had a divide-by-zero error in exif_entry_get_value in
exif-entry.c

Affected Software/OS:
'libexif' package(s) on Debian Linux.

Solution:
For Debian 8 'Jessie', these problems have been fixed in version
0.6.21-2+deb8u2.

We recommend that you upgrade your libexif packages.

CVSS Score:
7.8

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2016-6328
https://security.gentoo.org/glsa/202007-05
https://lists.debian.org/debian-lts-announce/2020/05/msg00016.html
SuSE Security Announcement: openSUSE-SU-2020:0793 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html
https://usn.ubuntu.com/4277-1/
Common Vulnerability Exposure (CVE) ID: CVE-2017-7544
https://sourceforge.net/p/libexif/bugs/130/
Common Vulnerability Exposure (CVE) ID: CVE-2020-0093
https://source.android.com/security/bulletin/2020-05-01
https://usn.ubuntu.com/4396-1/
CopyrightCopyright (C) 2020 Greenbone Networks GmbH

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