CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
80.5%
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: [email protected], http://sunweavers.net
Attachment:
signature.asc
Description: PGP signature
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 8 | armel | libexif-dev | < 0.6.21-2+deb8u2 | libexif-dev_0.6.21-2+deb8u2_armel.deb |
Debian | 8 | i386 | libexif-dev | < 0.6.21-2+deb8u2 | libexif-dev_0.6.21-2+deb8u2_i386.deb |
Debian | 9 | all | libexif | < 0.6.21-2+deb9u2 | libexif_0.6.21-2+deb9u2_all.deb |
Debian | 8 | i386 | libexif12 | < 0.6.21-2+deb8u2 | libexif12_0.6.21-2+deb8u2_i386.deb |
Debian | 8 | armel | libexif12 | < 0.6.21-2+deb8u2 | libexif12_0.6.21-2+deb8u2_armel.deb |
Debian | 8 | all | libexif | < 0.6.21-2+deb8u2 | libexif_0.6.21-2+deb8u2_all.deb |
Debian | 8 | armhf | libexif-dev | < 0.6.21-2+deb8u2 | libexif-dev_0.6.21-2+deb8u2_armhf.deb |
Debian | 8 | armhf | libexif12 | < 0.6.21-2+deb8u2 | libexif12_0.6.21-2+deb8u2_armhf.deb |
Debian | 10 | all | libexif | < 0.6.21-5.1+deb10u2 | libexif_0.6.21-5.1+deb10u2_all.deb |
Debian | 8 | amd64 | libexif-dev | < 0.6.21-2+deb8u2 | libexif-dev_0.6.21-2+deb8u2_amd64.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
80.5%