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WS-2022-0274

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Date: November 3, 2024

In iana-time-zone v0.1.43 and before v0.1.45, 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.

Language: RUST

Severity Score

Related Resources (6)

https://crates.io/crates/iana-time-zone
https://github.com/strawlab/iana-time-zone/commit/0819f928a08d4e4cdc60fee728880749465a921d
https://github.com/strawlab/iana-time-zone/pull/50#discussion_r945353515
https://github.com/strawlab/iana-time-zone/pull/54
https://rustsec.org/advisories/RUSTSEC-2022-0049.html
https://www.mend.io/vulnerability-database/WS-2022-0274

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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