GitHub Advisoryadvisory · crates.io

GHSA-5x36-7567-3cw6 partial_sort contains Out-of-bounds Read in release mode

MEDIUM Published 2023-02-28 Modified 2023-02-28 Official page ↗
Ecosystem
crates.io
Packages
partial_sort
Severity
Moderate
Weaknesses
CWE-125
Reviewed
2023-02-28

Affected packages

• crates.io partial_sort: < 0.2.0 → fixed in 0.2.0

Description

Affected versions of this crate were using a debug assertion to validate the `last` parameter of `partial_sort()`. This would allow invalid inputs to cause an out-of-bounds read instead of immediately panicking, when compiled without debug assertions. All writes are bounds-checked, so the out-of-bounds memory access is read-only. This also means that the first attempted out-of-bounds write will panic, limiting the possible reads. The accessible region is further limited by an initial bounds-checked read at `(last / 2) - 1`, i.e., it is proportional to the size of the vector. This bug has been fixed in v0.2.0.

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References