VULNERABILITY INTELLIGENCE

CVE-2021-30500

CVSS score7.8 HIGH

EPSS probability1.23%

CISA KEVNot currently listed

Published2021-05-27

Last modified2026-06-17

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

Description

Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.

Weakness classification

secalert@redhat.com: CWE-476

Primary references

secalert@redhat.com — Issue Tracking, Third Party Advisory
secalert@redhat.com — Patch, Third Party Advisory
secalert@redhat.com — Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory