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AUSCERT External Security Bulletin Redistribution
ESB-2020.1888
libexif security update
29 May 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libexif
Publisher: Debian
Operating System: Debian GNU/Linux 8
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-13114 CVE-2020-13113 CVE-2020-13112
CVE-2020-0093 CVE-2018-20030
Reference: ESB-2020.1759
ESB-2020.1683
ESB-2020.1591
ESB-2020.0718
Original Bulletin:
https://www.debian.org/lts/security/2020/dla-2222
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Package : libexif
Version : 0.6.21-2+deb8u3
CVE ID : CVE-2018-20030 CVE-2020-13112 CVE-2020-13113 CVE-2020-13114
Debian Bug : 918730 961407 961409 961410
Various minor vulnerabilities have been addredd in libexif, a library to
parse EXIF metadata files.
CVE-2018-20030
This issue had already been addressed via DLA-2214-1. However, upstream
provided an updated patch, so this has been followed up on.
CVE-2020-13112
Several buffer over-reads in EXIF MakerNote handling could have lead
to information disclosure and crashes. This issue is different from
already resolved CVE-2020-0093.
CVE-2020-13113
Use of uninitialized memory in EXIF Makernote handling could have
lead to crashes and potential use-after-free conditions.
CVE-2020-13114
An unrestricted size in handling Canon EXIF MakerNote data could have
lead to consumption of large amounts of compute time for decoding
EXIF data.
For Debian 8 "Jessie", these problems have been fixed in version
0.6.21-2+deb8u3.
We recommend that you upgrade your libexif packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
- --=20
mike gabriel aka sunweaver (Debian Developer)
fon: +49 (1520) 1976 148
GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31
mail: sunweaver@debian.org, http://sunweavers.net
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