CVE-2020-15254
16.10.2020, 17:15
Crossbeam is a set of tools for concurrent programming. In crossbeam-channel before version 0.4.4, the bounded channel incorrectly assumes that `Vec::from_iter` has allocated capacity that same as the number of iterator elements. `Vec::from_iter` does not actually guarantee that and may allocate extra memory. The destructor of the `bounded` channel reconstructs `Vec` from the raw pointer based on the incorrect assumes described above. This is unsound and causing deallocation with the incorrect capacity when `Vec::from_iter` has allocated different sizes with the number of iterator elements. This has been fixed in crossbeam-channel 0.4.4.Enginsight
| Vendor | Product | Version |
|---|---|---|
| crossbeam_project | crossbeam | 𝑥 < 0.4.4 |
𝑥
= Vulnerable software versions
Debian Releases
Ubuntu Releases
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| firefox |
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| mozjs38 |
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| mozjs52 |
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| mozjs60 |
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| mozjs68 |
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| rust-crossbeam |
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Common Weakness Enumeration
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory BufferThe software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
- CWE-401 - Missing Release of Memory after Effective LifetimeThe software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.
References