CVE-2017-14056

Description

In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.45%
Vendor Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/FFmpeg/FFmpeg/commit/96f24d1bee7fe7bac08e2b7c74db1a046c9dc0de third party advisory patch
http://www.securityfocus.com/bid/100628 vdb entry
https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html mailing list
http://www.debian.org/security/2017/dsa-3996 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-14056?
CVE-2017-14056 has been scored as a medium severity vulnerability.
How to fix CVE-2017-14056?
To fix CVE-2017-14056, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-14056 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-14056 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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