GNOME GLib up to 2.66.6/2.67.3 on 64-bit g_byte_array_new_take buffer overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in GNOME GLib up to 2.66.6/2.67.3 on 64-bit. Affected by this issue is the function g_byte_array_new_take. The manipulation results in buffer overflow. This vulnerability is reported as CVE-2021-27218. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in GNOME GLib up to 2.66.6/2.67.3 on 64-bit. It has been classified as critical. Affected is the function g_byte_array_new_take. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 02/16/2021. The advisory is available at gitlab.gnome.org. This vulnerability is traded as CVE-2021-27218. Technical details are known, but there is no available exploit.

Upgrading to version 2.66.7 or 2.67.4 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GLib 2.66.7/2.67.4

Timelineinfo

02/15/2021 🔍
02/16/2021 +1 days 🔍
02/16/2021 +0 days 🔍
03/01/2021 +13 days 🔍

Sourcesinfo

Vendor: gnome.org

Advisory: gitlab.gnome.org
Status: Confirmed

CVE: CVE-2021-27218 (🔍)
GCVE (CVE): GCVE-0-2021-27218
GCVE (VulDB): GCVE-100-169962

Entryinfo

Created: 02/16/2021 09:39
Updated: 03/01/2021 22:31
Changes: 02/16/2021 09:39 (39), 03/01/2021 22:28 (5), 03/01/2021 22:31 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!