DLA-2214-1

Source
https://storage.googleapis.com/debian-osv/dla-osv/DLA-2214-1.json
Aliases
Published
2020-05-18T00:00:00Z
Modified
2022-08-05T05:18:46.473901Z
Details

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

References

Affected packages

Debian:8 / libexif

libexif

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0
Fixed
0.6.21-2+deb8u2

Affected versions

0.*

0.6.21-2
0.6.21-2+deb8u1