Vulnerability Name:

CVE-2016-6920 (CCN-116645)

Assigned:2016-09-07
Published:2016-09-07
Updated:2018-10-09
Summary:Heap-based buffer overflow in the decode_block function in libavcodec/exr.c in FFmpeg before 3.1.3 allows remote attackers to cause a denial of service (application crash) via vectors involving tile positions.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)
5.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
6.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-119
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2016-6920

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=79f52a0dbd484aad111e4bf4a4f7047c7ceb6137

Source: MISC
Type: Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/138618/ffmpeg-3.1.2-Heap-Overflow.html

Source: CCN
Type: BugTraq Mailing List, Wed, 7 Sep 2016 02:22:21 GMT
CVE-2016-6920 ffmpeg exr file Heap Overflow

Source: BUGTRAQ
Type: UNKNOWN
20160907 CVE-2016-6920 ffmpeg exr file Heap Overflow

Source: BID
Type: Third Party Advisory, VDB Entry
92664

Source: CCN
Type: BID-92664
FFmpeg CVE-2016-6920 Denial of Service Vulnerability

Source: BID
Type: UNKNOWN
92790

Source: CCN
Type: BID-92790
FFmpeg CVE-2016-6920 Heap Buffer Overflow Vulnerability

Source: XF
Type: UNKNOWN
ffmpeg-exr-cve20166920-bo(116645)

Source: CCN
Type: FFmpeg Web site
FFmpeg

Source: CONFIRM
Type: Vendor Advisory
https://www.ffmpeg.org/security.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* (Version <= 3.1.2)

    • Configuration CCN 1:
  • cpe:/a:ffmpeg:ffmpeg:3.1.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.artful:def:20166920000
    V
    		CVE-2016-6920 on Ubuntu 17.10 (artful) - medium.
    2017-01-23
    oval:com.ubuntu.xenial:def:201669200000000
    V
    		CVE-2016-6920 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-01-23
    oval:com.ubuntu.bionic:def:20166920000
    V
    		CVE-2016-6920 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-01-23
    oval:com.ubuntu.xenial:def:20166920000
    V
    		CVE-2016-6920 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-01-23
    oval:com.ubuntu.bionic:def:201669200000000
    V
    		CVE-2016-6920 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-01-23
    BACK
    ffmpeg ffmpeg *
    ffmpeg ffmpeg 3.1.2