Vulnerability · Published May 26, 2021 · Assigned by fedora
CVE-2021-32614
High 7.1
In plain English
A high-severity out-of-bounds read in dmg2img. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).
Severity (CVSS NVD)7.1High
Exploit odds (30 days)1.0%top 38.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | dmg2img | no fix listed | DEBIAN-CVE-2021-32614 |
| Debian:13 | dmg2img | no fix listed | DEBIAN-CVE-2021-32614 |
| Debian:14 | dmg2img | no fix listed | DEBIAN-CVE-2021-32614 |
| Ubuntu:22.04:LTS | dmg2img | no fix listed | UBUNTU-CVE-2021-32614 |
| Ubuntu:24.04:LTS | dmg2img | no fix listed | UBUNTU-CVE-2021-32614 |
| Ubuntu:25.10 | dmg2img | no fix listed | UBUNTU-CVE-2021-32614 |
| Ubuntu:26.04:LTS | dmg2img | no fix listed | UBUNTU-CVE-2021-32614 |
| Ubuntu:26.10 | dmg2img | no fix listed | UBUNTU-CVE-2021-32614 |
Affected products (as reported)
Weakness: CWE-125
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1959911 x_refsource_MISC