CVE-2021-43312

Published Mar 24, 2023

Last updated 2 years ago

Overview

Description: A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf64::invert_pt_dynamic at p_lx_elf.cpp:5239.
Source: patrick@puiterwijk.org
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.5
Impact score: 3.6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: HIGH

Weaknesses

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

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:upx_project:upx:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "1E4C95CD-E2A9-47E3-9866-FD4B7ECF14AA",
            "versionEndExcluding": "4.0.0"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

References