SB2022080823 - Remote code execution in GNOME GDK-PixBuf



SB2022080823 - Remote code execution in GNOME GDK-PixBuf

Published: August 8, 2022 Updated: September 11, 2022

Security Bulletin ID SB2022080823
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2021-46829)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing GIF images. A remote attacker can create a specially crafted GIF image, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.


2) Heap-based buffer overflow (CVE-ID: CVE-2021-44648)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when decoding the lzw compressed stream of image data in GIF files. A remote attacker can trick the victim to open a specially crafted GIF file, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.