Vulnerability Name:

CVE-2020-35964 (CCN-194333)

Assigned:2020-10-20
Published:2020-10-20
Updated:2022-08-06
Summary:track_header in libavformat/vividas.c in FFmpeg 4.3.1 has an out-of-bounds write because of incorrect extradata packing.
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)
6.2 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:H/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
7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
7.0 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:H/RL:O/RC:C)
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): Low
Integrity (I): Low
Availibility (A): Low
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
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-35964

Source: CCN
Type: Google Security Research Issue 26622
ffmpeg:ffmpeg_dem_VIVIDAS_fuzzer: Heap-buffer-overflow in avio_read

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26622

Source: XF
Type: UNKNOWN
ffmpeg-cve202035964-bo(194333)

Source: CCN
Type: FFMPEG Web site
FFMPEG

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/FFmpeg/FFmpeg/commit/27a99e2c7d450fef15594671eef4465c8a166bd7

Source: GENTOO
Type: Third Party Advisory
GLSA-202105-24

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ffmpeg:ffmpeg:4.3.1:*:*:*:*:*:*:*
  • AND
  • cpe:/o:linux:linux_kernel:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:ffmpeg:ffmpeg:4.3.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:3303
    P
    		mipv6d-2.0.2.umip.0.4-19.63 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3571
    P
    		libXxf86dga1-1.1.4-3.58 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94933
    P
    		libavcodec58_134-4.4-150400.1.13 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:95201
    P
    		libavformat58_76-4.4-150400.1.13 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:112221
    P
    		ffmpeg-4-4.4-5.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:105751
    P
    		ffmpeg-4-4.4-5.2 on GA media (Moderate)
    2021-10-01
    BACK
    ffmpeg ffmpeg 4.3.1
    linux linux kernel -
    ffmpeg ffmpeg 4.3.1