GNOME GLib up to 2.66.5/2.67.2 on 64-bit g_bytes_new memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in GNOME GLib up to 2.66.5/2.67.2 on 64-bit and classified as critical. This affects the function g_bytes_new. This manipulation causes memory corruption. This vulnerability appears as CVE-2021-27219. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in GNOME GLib up to 2.66.5/2.67.2 on 64-bit. It has been declared as critical. Affected by this vulnerability is the function g_bytes_new. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 02/16/2021. It is possible to read the advisory at gitlab.gnome.org. This vulnerability is known as CVE-2021-27219. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236721 (Alibaba Cloud Linux 3 : 0033: glib2 (ALINUX3-SA-2021:0033)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.66.6 or 2.67.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236721). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236721
Nessus Name: Alibaba Cloud Linux 3 : 0033: glib2 (ALINUX3-SA-2021:0033)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GLib 2.66.6/2.67.3

Timelineinfo

02/15/2021 🔍
02/16/2021 +1 days 🔍
02/16/2021 +0 days 🔍
05/16/2025 +1550 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: gitlab.gnome.org
Status: Confirmed

CVE: CVE-2021-27219 (🔍)
GCVE (CVE): GCVE-0-2021-27219
GCVE (VulDB): GCVE-100-169963

Entryinfo

Created: 02/16/2021 09:40
Updated: 05/16/2025 18:03
Changes: 02/16/2021 09:40 (39), 03/01/2021 22:36 (5), 03/01/2021 22:39 (18), 05/16/2025 18:03 (17)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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