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Merge pull request #594 from JOE1994/calamine

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calamine: access unclaimed/uninitialized memory
This commit is contained in:
Sergey "Shnatsel" Davidoff
2021-01-30 19:20:21 +01:00
committed by GitHub
parent d791cc4bc5 633fd6e295
commit a51e8a6dfc
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crates/calamine/RUSTSEC-0000-0000.md Normal file
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```toml
[advisory]
id = "RUSTSEC-0000-0000"
package = "calamine"
date = "2021-01-06"
url = "https://github.com/tafia/calamine/issues/199"
categories = ["memory-corruption", "memory-exposure"]
[versions]
patched = []
```
# `Sectors::get` accesses unclaimed/uninitialized memory
Affected versions of this crate arbitrarily calls `Vec::set_len` to increase length of a vector without claiming more memory for the vector. Affected versions of this crate
also calls user-provided `Read` on the uninitialized memory of the vector that was
extended with `Vec::set_len`.
This can overwrite active entities in adjacent heap memory and seems to be a major security issue. Also, calling user-provided `Read` on uninitialized memory is defined as UB in Rust.