FFmpeg 2.1 Dimension libavcodec/hnm4video.c hnm_decode_init memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
9.5 | $0-$5k | 0.00 |
A vulnerability, which was classified as very critical, has been found in FFmpeg 2.1 (Multimedia Processing Software). Affected by this issue is the function hnm_decode_init
of the file libavcodec/hnm4video.c of the component Dimension Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.
The issue has been introduced in 10/29/2013. The weakness was released 11/22/2013 by Mateusz Jurczyk and Gynvael Coldwind with Google Security Team as avcodec/hnm4video: check dimensions for validity as confirmed git commit (GIT Repository). The advisory is shared for download at git.videolan.org. The public release was coordinated with the vendor. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/17/2019).
The vulnerability was handled as a non-public zero-day exploit for at least 24 days. During that time the estimated underground price was around $0-$5k.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.videolan.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.
Entries connected to this vulnerability are available at 11400, 11399, 11398 and 11397.
Affected
- FFmpeg 2.1
- Libav 0.8.9
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: 10.0VulDB Meta Temp Score: 9.5
VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
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: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.videolan.org
Timeline
10/29/2013 🔍11/22/2013 🔍
11/22/2013 🔍
12/06/2013 🔍
04/17/2019 🔍
Sources
Product: ffmpeg.orgAdvisory: avcodec/hnm4video: check dimensions for validity
Researcher: Mateusz Jurczyk, Gynvael Coldwind
Organization: Google Security Team
Status: Confirmed
Coordinated: 🔍
OSVDB: 100537
See also: 🔍
Entry
Created: 12/06/2013 12:00Updated: 04/17/2019 11:57
Changes: 12/06/2013 12:00 (51), 04/17/2019 11:57 (2)
Complete: 🔍
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