In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).
Published 2020-11-24 18:15:12
Updated 2021-12-02 21:15:14
Source MITRE
View at NVD,   CVE.org
Vulnerability category: OverflowMemory Corruption

Exploit prediction scoring system (EPSS) score for CVE-2020-28928

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 19 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-28928

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.1
LOW AV:L/AC:L/Au:N/C:N/I:N/A:P
3.9
2.9
NIST
5.5
MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.8
3.6
NIST

CWE ids for CVE-2020-28928

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-28928

Products affected by CVE-2020-28928

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