CVE-2021-32614 Information disclosure in dmg2img
An attacker can leak memory layout information via a buffer over-read in dmg2img, potentially aiding further exploitation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-32614?
CVE-2021-32614 is a high-severity vulnerability in dmg2img, published on 26 May 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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: CWE-125
Which versions are affected by CVE-2021-32614?
It affects 1 product.
Products include Dmg2img Project Dmg2img.
How do I fix CVE-2021-32614?
No fix has been published for CVE-2021-32614 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-32614 being exploited?
There is no known exploitation of CVE-2021-32614 in the wild and no public exploit code.
Other vulnerabilities in dmg2img
Sources
Also known as DEBIAN-CVE-2021-32614, GHSA-qw7r-wvwg-fj9h, UBUNTU-CVE-2021-32614.