SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-27219

The function g_bytes_new has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits.

HIGH 7.5EPSS 2.99%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue was discovered in GNOME GLib before 2.66.6 and 2.67.x before 2.67.3. The function g_bytes_new has an integer overflow on 64-bit platforms due to an implicit cast from 64 bits to 32 bits. The overflow could potentially lead to memory corruption.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
2.99% probability · 87th percentile
CISA KEV
Not listed
Weakness
CWE-681
Affected
gnome/glib · fedoraproject/fedora · netapp/active iq unified manager · netapp/cloud backup · netapp/e-series performance analyzer · broadcom/brocade fabric operating system firmware · debian/debian linux
Source
cve@mitre.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.