Debian 8: DLA-2222-1 Moderate: Libexif Buffer Overflow Issues

debian lts

May 28, 2020

Various minor vulnerabilities have been addredd in libexif, a library to parse EXIF metadata files

Topics Covered

security advisory buffer overflow Debian information disclosure patch update libexif minor vulnerabilities

Summary

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

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