CVE-2021-45385

Public Exploit

Description

A Null Pointer Dereference vulnerability exits in ffjpeg d5cfd49 (2021-12-06) in bmp_load(). When the size information in metadata of the bmp is out of range, it returns without assign memory buffer to `pb->pdata` and did not exit the program. So the program crashes when it tries to access the pb->data, in jfif_encode() at jfif.c:763. This is due to the incomplete patch for CVE-2020-13438.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.23%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/rockcarry/ffjpeg/issues/47 issue tracking exploit third party advisory
https://github.com/rockcarry/ffjpeg/pull/48 issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-45385?
CVE-2021-45385 has been scored as a medium severity vulnerability.
How to fix CVE-2021-45385?
To fix CVE-2021-45385, 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-2021-45385 being actively exploited in the wild?
It is possible that CVE-2021-45385 is being exploited or will be exploited in a near future based on public information. 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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