CVE-2021-30027

Public Exploit

Description

md_analyze_line in md4c.c in md4c 0.4.7 allows attackers to trigger use of uninitialized memory, and cause a denial of service via a malformed Markdown document.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.13%
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/mity/md4c/issues/155 third party advisory issue tracking exploit
https://github.com/mity/md4c/commit/4fc808d8fe8d8904f8525bb4231d854f45e23a19 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-30027?
CVE-2021-30027 has been scored as a medium severity vulnerability.
How to fix CVE-2021-30027?
To fix CVE-2021-30027, 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-2021-30027 being actively exploited in the wild?
It is possible that CVE-2021-30027 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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