CVE-2021-32614

HighCVSS 7.1/10Last modified Jun 17, 2026

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 7.1/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
n/a	dmg2img	dmg2img through 20170502

References

https://bugzilla.redhat.com/show_bug.cgi?id=1959911Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1959911Issue Tracking, Third Party Advisory

Timeline

Published: May 26, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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