CVE-2021-38171
CRITICAL
9.8
CVSS Score
Published: August 21, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:01 AM UTC
2 products affected across 2 vendorsDebian LinuxFFMPEG
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the init_get_bits return value, which is a necessary step because the second argument to init_get_bits can be crafted.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
PatchThird Party Advisory
Source: [email protected]
https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/11/msg00012.htmlVendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4990Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2021/dsa-4998CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-252
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