VULNERABILITY INTELLIGENCE

CVE-2021-43311

CVSS score7.5 HIGH
EPSS probability0.82%
CISA KEVNot currently listed
Published2023-03-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5382.

Weakness classification

  • patrick@puiterwijk.org: CWE-119
  • nvd@nist.gov: CWE-787

Primary references