1. Home
  2. CVE Database
  3. CVE-2021-39521
MEDIUM · 6.5

CVE-2021-39521

An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function bit_read_BB() located in bits.c. It allows an attacker to cause Denial of Service.

Vulnerability Description

An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function bit_read_BB() located in bits.c. It allows an attacker to cause Denial of Service.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
GnuLibredwg<= 0.10.1.3751

Related Weaknesses (CWE)

CWE-476

References

FAQ

What is CVE-2021-39521?

CVE-2021-39521 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function bit_read_BB() located in bits.c. It allows an attacker to cause Denial of Service.

How severe is CVE-2021-39521?

CVE-2021-39521 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-39521?

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