CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.1 | $0-$5k | 0.00 |
A vulnerability was found in FFmpeg 4.2.1 (Multimedia Processing Software). It has been classified as critical. Affected is the function gaussian_blur
of the file libavfilter/vf_edgedetect.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability.
The weakness was presented 09/20/2021 as 8260. The advisory is available at trac.ffmpeg.org. This vulnerability is traded as CVE-2020-20894 since 08/13/2020. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.
Applying the patch ccf4ab8c9aca0aee66bcc2914031a9c97ac0eeb8 is able to eliminate this problem. The bugfix is ready for download at git.ffmpeg.org.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.1
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: ccf4ab8c9aca0aee66bcc2914031a9c97ac0eeb8
Timeline
08/13/2020 🔍09/20/2021 🔍
09/20/2021 🔍
09/29/2021 🔍
Sources
Product: ffmpeg.orgAdvisory: 8260
Status: Confirmed
CVE: CVE-2020-20894 (🔍)
Entry
Created: 09/20/2021 21:53Updated: 09/29/2021 10:52
Changes: 09/20/2021 21:53 (42), 09/29/2021 10:46 (7), 09/29/2021 10:52 (1)
Complete: 🔍
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