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Vulnerability details: VCID-rstn-bsrp-aaak
Vulnerability ID VCID-rstn-bsrp-aaak
Aliases CVE-2020-21697
Summary A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-416 Use After Free
System Score Found at
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00152 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
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epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
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epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
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epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
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epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
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epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
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epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00182 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
epss 0.00435 https://api.first.org/data/v1/epss?cve=CVE-2020-21697
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-21697
cvssv3 6.5 https://nvd.nist.gov/vuln/detail/CVE-2020-21697
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2020-21697
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2020-21697
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20445
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20446
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20450
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20453
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20891
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20892
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20896
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21688
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21697
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22037
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22042
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3566
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38114
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38171
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38291
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://trac.ffmpeg.org/ticket/8188
https://www.debian.org/security/2021/dsa-4998
cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
CVE-2020-21697 https://nvd.nist.gov/vuln/detail/CVE-2020-21697
USN-5472-1 https://usn.ubuntu.com/5472-1/
USN-USN-5167-1 https://usn.ubuntu.com/USN-5167-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-21697
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-21697
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-21697
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.51183
EPSS Score 0.00144
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.