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CVE-2020-22035

A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in get_block_row at libavfilter...

8.8 HighFix available

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.

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
High
Integrity
High
Availability
High

Exploit likelihood

1.17%Up 0.8 points since Jun 2, 2021
90%50%10%1%

What each source reports

NVD Score used 8.8

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.

Record
CVE-2020-22035
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2020-22035
Updated
2026-11-02
EUVDEUVD-2020-14801 No score

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.

Record
EUVD-2020-14801
Updated
2026-11-03
GitHub AdvisoriesGHSA-65wf-3g9g-g8cm 8.8

A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in get_block_row at libavfilter...

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.

Record
GHSA-65wf-3g9g-g8cm
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-120
Updated
2026-11-02
OSV 8.8

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.

Record
CVE-2020-22035
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-22035 8.8

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.

Record
DEBIAN-CVE-2020-22035
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 HighCVSS: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 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-22035 8.8

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.

Record
UBUNTU-CVE-2020-22035
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUSN-5472-1 No score

ffmpeg vulnerabilities

It was discovered that FFmpeg would attempt to divide by zero when using Linear Predictive Coding (LPC) or AAC codecs. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-20445, CVE-2020-20446, CVE-2020-20453)

It was discovered that FFmpeg incorrectly handled certain input. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-20450)

It was discovered that FFmpeg incorrectly handled file conversion to APNG format. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-21041)

It was discovered that FFmpeg incorrectly handled remuxing RTP-hint tracks. A remote attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-21688)

It was discovered that FFmpeg incorrectly handled certain specially crafted AVI files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-21697)

It was discovered that FFmpeg incorrectly handled writing MOV video tags. An attacker could possibly use this issue to cause a denial of service, obtain sensitive information or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-22015)

It was discovered that FFmpeg incorrectly handled writing MOV files. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue affected only Ubuntu 18.04 LTS. (CVE-2020-22016)

It was discovered that FFmpeg incorrectly handled memory when using certain filters. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-22017, CVE-2020-22020, CVE-2020-22022, CVE-2020-22023, CVE-2022-22025, CVE-2020-22026, CVE-2020-22028, CVE-2020-22031, CVE-2020-22032, CVE-2020-22034, CVE-2020-22036, CVE-2020-22042)

It was discovered that FFmpeg incorrectly handled memory when using certain filters. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-22019, CVE-2020-22021, CVE-2020-22033)

It was discovered that FFmpeg incorrectly handled memory when using certain filters. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 21.10. (CVE-2020-22027, CVE-2020-22029, CVE-2020-22030, CVE-2020-22035)

It was discovered that FFmpeg incorrectly handled certain specially crafted JPEG files. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2020-22037)

It was discovered that FFmpeg incorrectly performed calculations in EXR codec. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-35965)

It was discovered that FFmpeg did not verify return values of functions init_vlc and init_get_bits. An attacker could possibly use this issue to cause a denial of service or other unspecified impact. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2021-38114, CVE-2021-38171)

It was discovered that FFmpeg incorrectly handled certain specially crafted files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 21.10 and Ubuntu 22.04 LTS. (CVE-2022-1475)

Record
USN-5472-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ffmpeg
Debian:12
before 7:4.3-2
7:4.3-2
ffmpeg
Debian:13
before 7:4.3-2
7:4.3-2
ffmpeg
Debian:14
before 7:4.3-2
7:4.3-2
ffmpeg
Debian:10
before 7:4.1.8-0+deb10u1, plus listed versions
7:4.1.3-17:4.1.4-17:4.1.4-1~deb10u17:4.1.6-1~deb10u1
7:4.1.8-0+deb10u1
ffmpeg
openEuler:20.03-LTS-SP4
before 4.2.4-46.oe2003sp4
4.2.4-46.oe2003sp4
ffmpeg
openEuler:22.03-LTS-SP4
before 4.2.4-46.oe2203sp4
4.2.4-46.oe2203sp4
qtwebengine-opensource-src
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
5.9.1+dfsg-45.9.1+dfsg-4ubuntu15.9.2+dfsg-2ubuntu15.9.3+dfsg-0ubuntu15.9.4+dfsg-0ubuntu15.9.5+dfsg-0ubuntu25.9.5+dfsg-0ubuntu2+esm1
None known
ffmpeg
Ubuntu:20.04:LTS
before 7:4.2.7-0ubuntu0.1, plus listed versions
7:4.1.4-1build27:4.2.1-27:4.2.1-2ubuntu17:4.2.2-1build17:4.2.2-1ubuntu17:4.2.4-1ubuntu0.1
7:4.2.7-0ubuntu0.1
qtwebengine-opensource-src
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
5.12.4+dfsg-1ubuntu15.12.4+dfsg-1ubuntu35.12.5+dfsg-3ubuntu15.12.5+dfsg-6ubuntu25.12.5+dfsg-7
Show 4 moreShow less
5.12.5+dfsg-7build15.12.8+dfsg-0ubuntu15.12.8+dfsg-0ubuntu1.15.12.8+dfsg-0ubuntu1.1+esm1
None known
qtwebengine-opensource-src
Ubuntu:Pro:22.04:LTS
All versions, plus listed versions
5.15.6+dfsg-15.15.6+dfsg-25.15.7+dfsg-25.15.8+dfsg-15.15.8+dfsg-1build1
Show 4 moreShow less
5.15.8+dfsg-1build25.15.8+dfsg-25.15.9+dfsg-15.15.9+dfsg-1ubuntu0.1~esm1
None known
Show 6 moreShow less
Affected packages
PackageAffectedFixed
qtwebengine-opensource-src
Ubuntu:Pro:24.04:LTS
All versions, plus listed versions
5.15.15+dfsg-25.15.15+dfsg-2build25.15.15+dfsg-2ubuntu15.15.16+dfsg-15.15.16+dfsg-1ubuntu25.15.16+dfsg-1ubuntu45.15.16+dfsg-35.15.16+dfsg-3ubuntu0.1~esm1
None known
qtwebengine-opensource-src
Ubuntu:25.10
All versions, plus listed versions
5.15.18+dfsg-25.15.18+dfsg-2build15.15.19+dfsg-15.15.19+dfsg2-1
None known
qtwebengine-opensource-src
Ubuntu:26.10
All versions, plus listed versions
5.15.19+dfsg2-45.15.19+dfsg2-65.15.19+dfsg2-7
None known
qtwebengine-opensource-src
Ubuntu:Pro:26.04:LTS
All versions, plus listed versions
5.15.19+dfsg2-15.15.19+dfsg2-1build15.15.19+dfsg2-25.15.19+dfsg2-35.15.19+dfsg2-45.15.19+dfsg2-4ubuntu0.1~esm1
None known
ffmpeg
Ubuntu:18.04:LTS
before 7:3.4.11-0ubuntu0.1, plus listed versions
7:3.3.4-27:3.3.4-2build37:3.4-2ubuntu27:3.4-47:3.4-4build1
Show 8 moreShow less
7:3.4.1-17:3.4.1-1build17:3.4.2-17:3.4.2-1build17:3.4.2-27:3.4.4-0ubuntu0.18.04.17:3.4.6-0ubuntu0.18.04.17:3.4.8-0ubuntu0.2
7:3.4.11-0ubuntu0.1
ffmpeg
Ubuntu:22.04:LTS
before 7:4.4.2-0ubuntu0.22.04.1, plus listed versions
7:4.4-6ubuntu57:4.4.1-2ubuntu17:4.4.1-3ubuntu17:4.4.1-3ubuntu27:4.4.1-3ubuntu37:4.4.1-3ubuntu5
7:4.4.2-0ubuntu0.22.04.1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-22035 is a high vulnerability (CVSS 8.8) in Ffmpeg, published June 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.17%, the 67th percentile. Fixed in ffmpeg 7:4.3-2.

References

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