CVE-2021-30027 — MEDIUM (5.5)

Vulnerability 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.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Md4C Project	Md4C	0.4.7

Related Weaknesses (CWE)

CWE-908

References

https://github.com/mity/md4c/commit/4fc808d8fe8d8904f8525bb4231d854f45e23a19PatchThird Party Advisory
https://github.com/mity/md4c/issues/155ExploitIssue TrackingThird Party Advisory
https://github.com/mity/md4c/commit/4fc808d8fe8d8904f8525bb4231d854f45e23a19PatchThird Party Advisory
https://github.com/mity/md4c/issues/155ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2021-30027?

CVE-2021-30027 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.

How severe is CVE-2021-30027?

CVE-2021-30027 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-30027?

Check the references section above for vendor advisories and patch information. Affected products include: Md4C Project Md4C.