SB2020020701 - OpenSUSE Linux update for upx
Published: February 7, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Double Free (CVE-ID: CVE-2018-11243)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the PackLinuxElf64::unpack(0 function in p_lx_elf.cpp. A remote attacker can create a specially crafted file, pass it to the application, trigger double free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Buffer overflow (CVE-ID: CVE-2019-14296)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing UPX packed files within the canUnpack() function in p_vmlinx.cpp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) 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.
4) Untrusted pointer dereference (CVE-ID: CVE-2019-20053)
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.