High (7.1) in dmg2img project dmg2img. EPSS 1.0% chance of exploitation in the next 30 days.
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.
Severity
CVSS 3.1
7.1 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
EPSS
1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)