SB2020030215 - Untrusted pointer dereference in upx (Alpine package)
Published: March 2, 2020
Security Bulletin ID
SB2020030215
CSH Severity
Medium
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 vulnerability.
1) Untrusted pointer dereference (CVE-ID: CVE-2019-20053)
CWE-ID: CWE-822 - Untrusted Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to invalid memory address dereference within the canUnpack() function in p_mach.cpp. A remote attacker can pass a specially crafted Mach-O file to the application and perform a denial of service attack.
Remediation
Install update from vendor's website.