SB2020030214 - Out-of-bounds read in upx (Alpine package)
Published: March 2, 2020
Security Bulletin ID
SB2020030214
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2019-20021)
The vulnerability allows an attacker to gain access to potentially sensitive information.
The vulnerability exists due to a heap-based buffer over-read within the canUnpack() function in p_mach.cpp. An attacker can create a specially crafted Mach-O file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
Remediation
Install update from vendor's website.