CVE-2020-22024
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter...
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
6.5
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
- Record
CVE-2020-22024- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List No score
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
- Record
CVE-2020-22024- Updated
- 2026-11-02
EUVDEUVD-2020-14790 No score
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
- Record
EUVD-2020-14790- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-ghvv-53f4-f6ff No score
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter...
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
- Record
GHSA-ghvv-53f4-f6ff- Weakness
- CWE-120
- Updated
- 2026-11-02
OSV
6.5
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
- Record
CVE-2020-22024- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-07
OSVDEBIAN-CVE-2020-22024
6.5
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
- Record
DEBIAN-CVE-2020-22024- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 4 moreShow less
OSVOESA-2026-3287
8.8
ffmpeg security update
FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.
Security Fix(es):
Buffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend in libavcodec/pngenc.c, which could let a remote malicious user cause a Denial of Service(CVE-2020-21041)
A heap-based Buffer Overflow vulnerabililty exists in FFmpeg 4.2 in filter_frame at libavfilter/vf_bitplanenoise.c, which might lead to memory corruption and other potential consequences.(CVE-2020-22023)
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.(CVE-2020-22024)
Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_vertically_8 at libavfilter/vf_avgblur.c, which could cause a remote Denial of Service.(CVE-2020-22028)
A Heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/vf_w3fdif.c in filter16_complex_low, which might lead to memory corruption and other potential consequences.(CVE-2020-22031)
A heap-based Buffer Overflow vulnerability exists FFmpeg 4.2 at libavfilter/vf_edgedetect.c in gaussian_blur, which might lead to memory corruption and other potential consequences.(CVE-2020-22032)
A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in get_block_row at libavfilter/vf_bm3d.c, which might lead to memory corruption and other potential consequences.(CVE-2020-22035)
A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_intra at libavfilter/vf_bwdif.c, which might lead to memory corruption and other potential consequences.(CVE-2020-22036)
A Denial of Service vulnerability exists in FFmpeg 4.2 idue to a memory leak in the v_frame_alloc function in frame.c.(CVE-2020-22040)
A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the av_buffersrc_add_frame_flags function in buffersrc.(CVE-2020-22041)
A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_frame_pool_get function in framepool.c.(CVE-2020-22048)
A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the config_input function in af_acrossover.c.(CVE-2020-22056)
decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations.(CVE-2020-35965)
A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.(CVE-2025-9951)
- Record
OESA-2026-3287- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVOESA-2026-3288
8.8
ffmpeg security update
FFmpeg is a complete and free Internet live audio and video broadcasting solution for Linux/Unix. It also includes a digital VCR. It can encode in real time in many formats including MPEG1 audio and video, MPEG4, h263, ac3, asf, avi, real, mjpeg, and flash.
Security Fix(es):
Buffer Overflow vulnerability exists in FFmpeg 4.1 via apng_do_inverse_blend in libavcodec/pngenc.c, which could let a remote malicious user cause a Denial of Service(CVE-2020-21041)
A heap-based Buffer Overflow vulnerabililty exists in FFmpeg 4.2 in filter_frame at libavfilter/vf_bitplanenoise.c, which might lead to memory corruption and other potential consequences.(CVE-2020-22023)
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.(CVE-2020-22024)
Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_vertically_8 at libavfilter/vf_avgblur.c, which could cause a remote Denial of Service.(CVE-2020-22028)
A Heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/vf_w3fdif.c in filter16_complex_low, which might lead to memory corruption and other potential consequences.(CVE-2020-22031)
A heap-based Buffer Overflow vulnerability exists FFmpeg 4.2 at libavfilter/vf_edgedetect.c in gaussian_blur, which might lead to memory corruption and other potential consequences.(CVE-2020-22032)
A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in get_block_row at libavfilter/vf_bm3d.c, which might lead to memory corruption and other potential consequences.(CVE-2020-22035)
A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_intra at libavfilter/vf_bwdif.c, which might lead to memory corruption and other potential consequences.(CVE-2020-22036)
A Denial of Service vulnerability exists in FFmpeg 4.2 idue to a memory leak in the v_frame_alloc function in frame.c.(CVE-2020-22040)
A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the av_buffersrc_add_frame_flags function in buffersrc.(CVE-2020-22041)
A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the ff_frame_pool_get function in framepool.c.(CVE-2020-22048)
A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the config_input function in af_acrossover.c.(CVE-2020-22056)
decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations.(CVE-2020-35965)
A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.(CVE-2025-9951)
- Record
OESA-2026-3288- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-22024
6.5
Buffer Overflow vulnerability in FFmpeg 4.2 at the lagfun_frame16 function in libavfilter/vf_lagfun.c, which could let a remote malicious user cause Denial of Service.
- Record
UBUNTU-CVE-2020-22024- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-6430-1 No score
ffmpeg vulnerabilities
It was discovered that FFmpeg did not properly handle certain inputs in vf_lagfun.c, resulting in a buffer overflow vulnerability. An attacker could possibly use this issue to cause a denial of service via application crash. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-22024)
It was discovered that FFmpeg incorrectly managed memory in avienc.c, resulting in a memory leak. An attacker could possibly use this issue to cause a denial of service via application crash. (CVE-2020-22039)
It was discovered that FFmpeg incorrectly handled certain files due to a memory leak in frame.c. An attacker could possibly use this issue to cause a denial of service via application crash. This issue affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-22040)
It was discovered that FFmpeg incorrectly handled certain files due to a memory leak in fifo.c. An attacker could possibly use this issue to cause a denial of service via application crash. (CVE-2020-22043)
It was discovered that FFmpeg incorrectly handled certain files due to a memory leak in vf_tile.c. If a user or automated system were tricked into processing a specially crafted MOV file, an attacker could possibly use this issue to cause a denial of service. (CVE-2020-22051)
It was discovered that FFmpeg incorrectly handled certain MOV files in timecode.c, leading to an integer overflow. An attacker could possibly use this issue to cause a denial of service using a crafted MOV file. This issue only affected Ubuntu 16.04 LTS. (CVE-2021-28429)
- Record
USN-6430-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ffmpegDebian:12 |
before 7:4.3-2 | 7:4.3-2 |
ffmpegDebian:13 |
before 7:4.3-2 | 7:4.3-2 |
ffmpegDebian:14 |
before 7:4.3-2 | 7:4.3-2 |
ffmpegopenEuler:20.03-LTS-SP4 From an advisory covering 14 CVEs |
before 4.2.4-46.oe2003sp4 | 4.2.4-46.oe2003sp4 |
ffmpegopenEuler:22.03-LTS-SP4 From an advisory covering 14 CVEs |
before 4.2.4-46.oe2203sp4 | 4.2.4-46.oe2203sp4 |
ffmpegUbuntu:Pro:20.04:LTS |
before 7:4.2.7-0ubuntu0.1+esm2, plus listed versions 7:4.1.4-1build27:4.2.1-27:4.2.1-2ubuntu17:4.2.2-1build17:4.2.2-1ubuntu1 Show 4 moreShow less7:4.2.4-1ubuntu0.17:4.2.4-1ubuntu0.1+esm17:4.2.7-0ubuntu0.17:4.2.7-0ubuntu0.1+esm1 |
7:4.2.7-0ubuntu0.1+esm2 |
ffmpegUbuntu:Pro:16.04:LTS From an advisory covering 6 CVEs |
before 7:2.8.17-0ubuntu0.1+esm6, plus listed versions 7:2.7.2-1build17:2.8.1-1ubuntu17:2.8.2-1ubuntu17:2.8.3-17:2.8.4-1 Show 18 moreShow less7:2.8.4-1ubuntu17:2.8.4-1ubuntu27:2.8.4-1ubuntu37:2.8.4-1ubuntu47:2.8.6-1ubuntu17:2.8.6-1ubuntu27:2.8.8-0ubuntu0.16.04.17:2.8.10-0ubuntu0.16.04.17:2.8.11-0ubuntu0.16.04.17:2.8.14-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.1+esm17:2.8.17-0ubuntu0.17:2.8.17-0ubuntu0.1+esm17:2.8.17-0ubuntu0.1+esm27:2.8.17-0ubuntu0.1+esm37:2.8.17-0ubuntu0.1+esm47:2.8.17-0ubuntu0.1+esm5 |
7:2.8.17-0ubuntu0.1+esm6 |
ffmpegUbuntu:Pro:18.04:LTS From an advisory covering 6 CVEs |
before 7:3.4.11-0ubuntu0.1+esm2, plus listed versions 7:3.3.4-27:3.3.4-2build37:3.4-2ubuntu27:3.4-47:3.4-4build1 Show 10 moreShow less7:3.4.1-17:3.4.1-1build17:3.4.2-17:3.4.2-1build17:3.4.2-27:3.4.4-0ubuntu0.18.04.17:3.4.6-0ubuntu0.18.04.17:3.4.8-0ubuntu0.27:3.4.11-0ubuntu0.17:3.4.11-0ubuntu0.1+esm1 |
7:3.4.11-0ubuntu0.1+esm2 |
ffmpegUbuntu:Pro:20.04:LTS From an advisory covering 6 CVEs |
before 7:4.2.7-0ubuntu0.1+esm2, plus listed versions 7:4.1.4-1build27:4.2.1-27:4.2.1-2ubuntu17:4.2.2-1build17:4.2.2-1ubuntu1 Show 4 moreShow less7:4.2.4-1ubuntu0.17:4.2.4-1ubuntu0.1+esm17:4.2.7-0ubuntu0.17:4.2.7-0ubuntu0.1+esm1 |
7:4.2.7-0ubuntu0.1+esm2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-22024 is a medium vulnerability (CVSS 6.5) in Ffmpeg, published May 26, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.04%, the 64th percentile. Fixed in ffmpeg 7:4.3-2.
References
trac.ffmpeg.org/ticket/8310
nvd.nist.gov/vuln/detail/CVE-2020-22024
github.com/advisories/GHSA-ghvv-53f4-f6ff
security-tracker.debian.org/tracker/CVE-2020-22024
openeuler.org/zh/security/security-bulletins/detail?id=openEuler-SA-2026-3287
nvd.nist.gov/vuln/detail/CVE-2020-21041
Show 21 moreShow less
nvd.nist.gov/vuln/detail/CVE-2020-22023
nvd.nist.gov/vuln/detail/CVE-2020-22028
nvd.nist.gov/vuln/detail/CVE-2020-22031
nvd.nist.gov/vuln/detail/CVE-2020-22032
nvd.nist.gov/vuln/detail/CVE-2020-22035
nvd.nist.gov/vuln/detail/CVE-2020-22036
nvd.nist.gov/vuln/detail/CVE-2020-22040
nvd.nist.gov/vuln/detail/CVE-2020-22041
nvd.nist.gov/vuln/detail/CVE-2020-22048
nvd.nist.gov/vuln/detail/CVE-2020-22056
nvd.nist.gov/vuln/detail/CVE-2020-35965
nvd.nist.gov/vuln/detail/CVE-2025-9951
openeuler.org/zh/security/security-bulletins/detail?id=openEuler-SA-2026-3288
ubuntu.com/security/CVE-2020-22024
ubuntu.com/security/notices/USN-6430-1
cve.org/CVERecord?id=CVE-2020-22024
ubuntu.com/security/CVE-2020-22039
ubuntu.com/security/CVE-2020-22040
ubuntu.com/security/CVE-2020-22043
ubuntu.com/security/CVE-2020-22051
ubuntu.com/security/CVE-2021-28429