SB2019081917 - Use-after-free in libheif (Alpine package)
Published: August 19, 2019
Security Bulletin ID
SB2019081917
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2019-11471)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_context.cc mishandles references to non-existing alpha images.
Remediation
Install update from vendor's website.