VULNERABILITY INTELLIGENCE

CVE-2021-32614

CVSS score7.1 HIGH
EPSS probability0.96%
CISA KEVNot currently listed
Published2021-05-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Description

A flaw was found in dmg2img through 20170502. fill_mishblk() does not check the length of the read buffer, and copy 0xCC bytes from it. The length of the buffer is controlled by an attacker. By providing a length smaller than 0xCC, memcpy reaches out of the malloc'ed bound. This possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.

Weakness classification

  • patrick@puiterwijk.org: CWE-125
  • nvd@nist.gov: CWE-125

Primary references