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CVE-2021-27218

HIGHCVSS 7.5/10EPSS 4.19%

Last modified

CVE-2021-27218 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 4.19% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
4.19%

89.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GnomeGlib< 2.66.7
GnomeGlib>= 2.67.0, < 2.67.4
FedoraprojectFedora33
FedoraprojectFedora34
NetappActive Iq Unified ManagerAll versions
NetappCloud BackupAll versions
NetappE-Series Performance AnalyzerAll versions
BroadcomBrocade Fabric Operating System FirmwareAll versions
DebianDebian Linux9.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-27218?
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.
How severe is CVE-2021-27218?
CVE-2021-27218 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.19% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27218?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27218?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST