CVE-2021-39522 : An issue was discovered in libredwg through v0.10.1.3751. bit

An issue was discovered in libredwg through v0.10.1.3751. bit_wcs2len() in bits.c has a heap-based buffer overflow.

Published 2021-09-20 16:15:12

Updated 2021-09-24 20:37:28

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2021-39522

GNU » Libredwg
Versions up to, including, (<=) 0.10.1.3751
cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.32%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 70 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

https://github.com/LibreDWG/libredwg/issues/255

A heap buffer overflow in bit_wcs2len at bits.c:1634 · Issue #255 · LibreDWG/libredwg · GitHub
Exploit;Issue Tracking;Patch;Third Party Advisory

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