GHSA-fhvc-gp6c-h2wx
Read on uninitialized buffer in postscript
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| crates.io | postscript | < 0.14.0 | 0.14.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation.
Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.
This flaw was fixed in commit `8026286` by zero-initializing the buffer before handing to a user-provided Read.
References
External links from the advisory. They lead to third-party sites.