CVE-2021-32614

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Third-Party Advisory redhat.com
Affected: n/a dmg2img
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1959911 issue tracking third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-32614?
CVE-2021-32614 has been scored as a high severity vulnerability.
How to fix CVE-2021-32614?
To fix CVE-2021-32614, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32614 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-32614 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-32614?
CVE-2021-32614 affects n/a dmg2img.
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