PT-2020-17646
CVE-2020-36464
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Published
2020-11-02
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Updated
2021-08-25
Description by
CVSS 3.1
7.5
HighMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions
heapless crate versions prior to 0.6.1
Description
The issue arises from the
IntoIter Clone implementation, which clones the entire underlying Vec without considering whether it has already been partially consumed. This can lead to a use-after-free access if the iterator is partially consumed, as the consumed items will be copied. A proof of concept is available, demonstrating the potential for exploitation.Recommendations
For versions prior to 0.6.1, update to version 0.6.1 or later to resolve the issue. As a temporary workaround, consider avoiding the use of the
Clone implementation on partially consumed IntoIter instances to minimize the risk of exploitation. Found an issue in the description? Have something to add? Feel free to write us 👾