CVE-2021-32614

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-05-26 · updated 2026-06-17
Weakness: CWE-125

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 products

dmg2img: through 20170502

References

https://bugzilla.redhat.com/show_bug.cgi?id=1959911
https://bugzilla.redhat.com/show_bug.cgi?id=1959911

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