CVE-2021-32614
A flaw was found in dmg2img through 20170502. fill_mishblk() does not check the length of the...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-32614- 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 - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-32614- Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2021-19452 No score
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.
- Record
EUVD-2021-19452- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qw7r-wvwg-fj9h
A flaw was found in dmg2img through 20170502. fill_mishblk() does not check the length of the...
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.
- Record
GHSA-qw7r-wvwg-fj9h- 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 - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-32614- 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 - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-32614
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.
- Record
DEBIAN-CVE-2021-32614- 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 - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-32614
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.
- Record
UBUNTU-CVE-2021-32614- 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 - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
dmg2imgDebian:12 |
All versions, plus listed versions 1.6.7+git20201227.a3e4134-0.11.6.7-1 |
None known |
dmg2imgDebian:13 |
All versions, plus listed versions 1.6.7+git20201227.a3e4134-0.1 |
None known |
dmg2imgDebian:14 |
All versions, plus listed versions 1.6.7+git20201227.a3e4134-0.1 |
None known |
dmg2imgUbuntu:16.04:LTS |
All versions, plus listed versions 1.6.5-1 |
None known |
dmg2imgUbuntu:18.04:LTS |
All versions, plus listed versions 1.6.5-1.11.6.7-11.6.7-1build1 |
None known |
dmg2imgUbuntu:20.04:LTS |
All versions, plus listed versions 1.6.7-1build1 |
None known |
dmg2imgUbuntu:22.04:LTS |
All versions, plus listed versions 1.6.7-1build11.6.7-1build2 |
None known |
dmg2imgUbuntu:24.04:LTS |
All versions, plus listed versions 1.6.7-1build21.6.7-1build31.6.7-1build4 |
None known |
dmg2imgUbuntu:25.10 |
All versions, plus listed versions 1.6.7-1build41.6.7+git20201227.a3e4134-0.1 |
None known |
dmg2imgUbuntu:26.10 |
All versions, plus listed versions 1.6.7+git20201227.a3e4134-0.1build11.6.7+git20201227.a3e4134-0.1build2 |
None known |
dmg2imgUbuntu:26.04:LTS |
All versions, plus listed versions 1.6.7+git20201227.a3e4134-0.11.6.7+git20201227.a3e4134-0.1build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-32614 is a high vulnerability (CVSS 7.1) in Dmg2img Project Dmg2img, published May 26, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.96%, the 61st percentile. No source names a fixed version.