CVE-2021-27218

glib: integer overflow in g_byte_array_new_take function when called with a buffer of 4GB or more on a 64-bit platform

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se detectó un problema en GNOME GLib versiones anteriores a 2.66.7 y versiones 2.67.x anteriores a 2.67.4. Si se llamó a la función g_byte_array_new_take() con un búfer de 4 GB o más sobre una plataforma de 64 bits, la longitud debería ser truncada módulo 2**32, causando un truncamiento de la longitud no prevista

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-02-15 CVE Reserved
2021-02-15 CVE Published
2024-03-20 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-190: Integer Overflow or Wraparound
CWE-681: Incorrect Conversion between Numeric Types

CAPEC

References (12)

URL	Tag	Source
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E	Mailing List
https://lists.debian.org/debian-lts-announce/2022/06/msg00006.html	Mailing List
https://security.netapp.com/advisory/ntap-20210319-0004	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1942	2023-11-07
https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1944	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2REA7RVKN7ZHRLJOEGBRQKJIPZQPAELZ	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJMPNDO4GDVURYQFYKFOWY5HAF4FTEPN	2023-11-07
https://security.gentoo.org/glsa/202107-13	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-27218	2021-11-09
https://bugzilla.redhat.com/show_bug.cgi?id=1929847	2021-11-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Gnome Search vendor "Gnome"		Glib Search vendor "Gnome" for product "Glib"				< 2.66.7 Search vendor "Gnome" for product "Glib" and version " < 2.66.7"		-		Affected
Gnome Search vendor "Gnome"		Glib Search vendor "Gnome" for product "Glib"				>= 2.67.0 < 2.67.4 Search vendor "Gnome" for product "Glib" and version " >= 2.67.0 < 2.67.4"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		vmware_vsphere		Affected
Netapp Search vendor "Netapp"		Cloud Backup Search vendor "Netapp" for product "Cloud Backup"				-		-		Affected
Netapp Search vendor "Netapp"		E-series Performance Analyzer Search vendor "Netapp" for product "E-series Performance Analyzer"				-		-		Affected
Broadcom Search vendor "Broadcom"		Brocade Fabric Operating System Firmware Search vendor "Broadcom" for product "Brocade Fabric Operating System Firmware"				-		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected