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.
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- May 26, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified