GHSA-3fg9-hcq5-vxrc
iana-time-zone vulnerable to use after free in MacOS / iOS implementation
In iana-time-zone v0.1.43 a use-after-free bug in the MacOS / iOS implementation was introduced.
The copied system time zone was released before its name was copied.
If the system time zone was changed between the call of CFRelease and str::to_owned(),
random memory would be copied.
What each source reports
GitHub AdvisoriesNo score
iana-time-zone vulnerable to use after free in MacOS / iOS implementation
In iana-time-zone v0.1.43 a use-after-free bug in the MacOS / iOS implementation was introduced.
The copied system time zone was released before its name was copied.
If the system time zone was changed between the call of CFRelease and str::to_owned(),
random memory would be copied.
- Record
GHSA-3fg9-hcq5-vxrc- Weakness
- CWE-416
- Updated
- 2026-11-02
OSVNo score
iana-time-zone vulnerable to use after free in MacOS / iOS implementation
In iana-time-zone v0.1.43 a use-after-free bug in the MacOS / iOS implementation was introduced.
The copied system time zone was released before its name was copied.
If the system time zone was changed between the call of CFRelease and str::to_owned(),
random memory would be copied.
- Record
GHSA-3fg9-hcq5-vxrc- Weakness
- CWE-416
- Updated
- 2026-11-02
OSVRUSTSEC-2022-0049No score
Use after free in MacOS / iOS implementation
In iana-time-zone v0.1.43 a use-after-free bug in the MacOS / iOS implementation was introduced.
The copied system time zone was released before its name was copied.
If the system time zone was changed between the call of CFRelease and str::to_owned(),
random memory would be copied.
- Record
RUSTSEC-2022-0049- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
iana-time-zonecrates.io | 0.1.43 up to 0.1.45 | 0.1.45 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-3fg9-hcq5-vxrc is a vulnerability with no CVSS score yet in iana-time-zone, published August 15, 2022. No source lists public exploit code. Fixed in iana-time-zone 0.1.45.