[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

[SECURITY] [DLA 2214-1] libexif security update

Package        : libexif
Version        : 0.6.21-2+deb8u2
CVE ID         : CVE-2016-6328 CVE-2017-7544 CVE-2018-20030 CVE-2020-0093
Debian Bug     : #960199 #918730 #876466 #873022

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


    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).


    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


    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.


    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.


    libexif had a divide-by-zero error in exif_entry_get_value in

For Debian 8 "Jessie", these problems have been fixed in version

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


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

Attachment: signature.asc
Description: PGP signature

Reply to: