CVE-2021-20285

medium

Description

A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1937787

https://github.com/upx/upx/issues/421

Details

Source: MITRE

Published: 2021-03-26

Updated: 2021-03-29

Type: CWE-119

Risk Information

CVSS v2

Base Score: 8.3

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:C

Impact Score: 8.5

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 6.6

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

Impact Score: 4.7

Exploitability Score: 1.8

Severity: MEDIUM