CVE-2021-27219

Public on 2021-06-16
Modified on 2021-09-08
Description
An integer wraparound was discovered in glib due to passing a 64 bit sized value to function g_memdup() which accepts a 32 bits number as argument. An attacker may abuse this flaw when an application linked against the glib library uses g_bytes_new() function or possibly other functions that use g_memdup() underneath and accept a 64 bits argument as size. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
Important
CVSS v3 Base Score
9.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 glib2 2021-06-16 20:37 ALAS2-2021-1655
Amazon Linux 1 glib2 2021-09-02 22:54 ALAS-2021-1526

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H