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Fencer Intel
medium —

GHSA-c8v3-jhv9-4ppc json

Use-after-free when setting the locale

published 2y ago modified 2y ago also RUSTSEC-2024-0007

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

Version 3.0.0 introduced an `AtomicStr` type, that is used to store the current locale. It stores the locale as a raw pointer to an `Arc<String>`. The locale can be read with `AtomicStr::as_str()`. `AtomicStr::as_str()` does not increment the usage counter of the `Arc`.

If the locale is changed in one thread, another thread can have a stale -- possibly already freed -- reference to the stored string.

Patch / fix

  • crates.io rust-i18n-support 3.0.1

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Affected packages

ecosystem package affected fixed in
crates.io rust-i18n-support
>=3.0.0, <3.0.1
3.0.1

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.