[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
                 CVE-2020-12767
Debian Bug     : #960199 #918730 #876466 #873022


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

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

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: