CVE-2023-23456 Upx: heap-buffer-overflow in packtmt::pack()

2023-01-1200:00:00

CWE-787

fedora

www.cve.org

cve-2023-23456

upx

buffer overflow

denial of service

5.3 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

5.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

31.9%

JSON

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

CNA Affected

[
  {
    "versions": [
      {
        "status": "unaffected",
        "version": "4.0.2",
        "lessThan": "*",
        "versionType": "semver"
      }
    ],
    "packageName": "upx",
    "collectionURL": "https://github.com/upx/upx"
  }
]