RUSTSEC-2021-0017

    Dashboard / Vulnerabilities / RUSTSEC-2021-0017

    RUSTSEC-2021-0017

    Published: 30 Jan 2021Last Modified: 8 Nov 2023

    Summary: `Read` on uninitialized buffer may cause UB (`impl Walue for Vec<u8>`)

    Details: Affected versions of this crate passes an uninitialized buffer to a user-provided `Read` implementation. Arbitrary `Read` implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior. This flaw was fixed in commit 8026286 by zero-initializing the buffer before handing to a user-provided `Read`.

    References: https://crates.io/crates/postscript, https://rustsec.org/advisories/RUSTSEC-2021-0017.html, https://github.com/bodoni/postscript/issues/1

    Affected packages

    Package

    Name: postscript

    Purl: pkg:cargo/postscript

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0.0.0-0
    Fixed -0.14.0

    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-2021-0017 | CVE-DB