SB2019061626 - Improper input validation in graphicsmagick (Alpine package)
Published: June 16, 2019
Security Bulletin ID
SB2019061626
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper input validation (CVE-ID: CVE-2018-20189)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to an error in the ReadDIBImage function of coders/dib.c when processing malicious input in DIB reader. A remote attacker can cause the service to crash via a dib file that is crafted to appear with direct pixel values and also colormapping (which is not available beyond 8-bits/sample), and therefore lacks indexes initialization.
Remediation
Install update from vendor's website.