An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. If g_byte_array_new_take() was called with a buffer of 4GB or more on a 64-bit platform, the length would be truncated modulo 2**32, causing unintended length truncation.
Published 2021-02-15 17:15:13
Updated 2022-12-07 17:08:38
Source MITRE
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-27218

Probability of exploitation activity in the next 30 days: 0.98%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 83 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-27218

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
NIST

CWE ids for CVE-2021-27218

  • When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-27218

Products affected by CVE-2021-27218

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