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Report uninitialized memory exposure in truetype

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This commit is contained in:
Ammar Askar
2021-03-01 11:54:59 -08:00
parent 1794caeec1
commit b4afb832c4
1 changed files with 22 additions and 0 deletions
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crates/truetype/RUSTSEC-0000-0000.md Normal file
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```toml
[advisory]
id = "RUSTSEC-0000-0000"
package = "truetype"
date = "2021-02-17"
url = "https://github.com/bodoni/truetype/issues/11"
categories = ["memory-exposure"]
[versions]
patched = [">= 0.30.1"]
```
# Tape::take_bytes exposes uninitialized memory to a user-provided Read
Affected versions of this crate passed an unininitialized buffer to a
user-provided `Read` instance in `Tape::take_bytes`.
This can result in safe `Read` implementations reading from the uninitialized
buffer leading to undefined behavior.
The flaw was corrected in commit `1f2dc7f37dd` by removing the unsafe block
and zero-initializing the buffer.