RUSTSEC-2020-0159

    Dashboard / Vulnerabilities / RUSTSEC-2020-0159

    RUSTSEC-2020-0159

    Published: 10 Nov 2020Last Modified: 4 Feb 2026

    Summary: Potential segfault in `localtime_r` invocations

    Details: ### Impact Unix-like operating systems may segfault due to dereferencing a dangling pointer in specific circumstances. This requires an environment variable to be set in a different thread than the affected functions. This may occur without the user's knowledge, notably in a third-party library. ### Workarounds No workarounds are known. ### References - [time-rs/time#293](https://github.com/time-rs/time/issues/293)

    References: https://crates.io/crates/chrono, https://rustsec.org/advisories/RUSTSEC-2020-0159.html, https://github.com/chronotope/chrono/issues/499

    Affected packages

    Package

    Name: chrono

    Purl: pkg:cargo/chrono

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.0.0-0
    Fixed -0.4.20

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RUSTSEC-2020-0159 | CVE-DB