Vulnerability Name:

CVE-2018-7557 (CCN-139702)

Assigned:2018-02-27
Published:2018-02-27
Updated:2022-10-07
Summary:The decode_init function in libavcodec/utvideodec.c in FFmpeg 2.8 through 3.4.2 allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
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): None
Integrity (I): None
Availibility (A): High
5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-7557

Source: XF
Type: UNKNOWN
ffmpeg-cve20187557-dos(139702)

Source: CCN
Type: FFmpeg GIT Repository
avcodec/utvideodec: Check subsample factors

Source: CONFIRM
Type: Patch, Vendor Advisory
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/7414d0bda7763f9bd69c26c068e482ab297c1c96

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/FFmpeg/FFmpeg/commit/e724bd1dd9efea3abb8586d6644ec07694afceae

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20190107 [SECURITY] [DLA 1630-1] libav security update

Source: GENTOO
Type: Third Party Advisory
GLSA-202003-65

Source: DEBIAN
Type: Third Party Advisory
DSA-4249

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-7557

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* (Version >= 2.8 and <= 3.4.2)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:ffmpeg:ffmpeg:3.4.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.artful:def:20187557000
    V
    		CVE-2018-7557 on Ubuntu 17.10 (artful) - untriaged.
    2018-02-28
    oval:com.ubuntu.bionic:def:201875570000000
    V
    		CVE-2018-7557 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-02-28
    oval:com.ubuntu.bionic:def:20187557000
    V
    		CVE-2018-7557 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-02-28
    oval:com.ubuntu.xenial:def:201875570000000
    V
    		CVE-2018-7557 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-02-28
    oval:com.ubuntu.trusty:def:20187557000
    V
    		CVE-2018-7557 on Ubuntu 14.04 LTS (trusty) - untriaged.
    2018-02-28
    oval:com.ubuntu.xenial:def:20187557000
    V
    		CVE-2018-7557 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-02-28
    BACK
    ffmpeg ffmpeg *
    debian debian linux 8.0
    debian debian linux 9.0
    ffmpeg ffmpeg 3.4.2