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    Gentoo: GLSA-202007-48: OCaml: Arbitrary code execution

    Date
    299
    Posted By
    An integer overflow was discovered in OCaml's standard library, possibly allowing arbitrary execution of code.
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    Gentoo Linux Security Advisory                           GLSA 202007-48
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                                               https://security.gentoo.org/
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     Severity: Normal
        Title: OCaml: Arbitrary code execution
         Date: July 27, 2020
         Bugs: #719134
           ID: 202007-48
    
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    Synopsis
    ========
    
    An integer overflow was discovered in OCaml's standard library,
    possibly allowing arbitrary execution of code.
    
    Background
    ==========
    
    OCaml is a high-level, strongly-typed, functional, and object-oriented
    programming language from the ML family of languages
    
    Affected packages
    =================
    
        -------------------------------------------------------------------
         Package              /     Vulnerable     /            Unaffected
        -------------------------------------------------------------------
      1  dev-lang/ocaml               < 4.09.0                  >= 4.09.0
    
    Description
    ===========
    
    The caml_ba_deserialize function in byterun/bigarray.c in the standard
    library of OCaml has an integer overflow.
    
    Impact
    ======
    
    A remote attacker could possibly execute arbitrary code with the
    privileges of the process, or cause a Denial of Service condition.
    
    Workaround
    ==========
    
    There is no known workaround at this time.
    
    Resolution
    ==========
    
    All OCaml users should upgrade to the latest version:
    
      # emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-lang/ocaml-4.09.0"
    
    References
    ==========
    
    [ 1 ] CVE-2018-9838
          https://nvd.nist.gov/vuln/detail/CVE-2018-9838
    
    Availability
    ============
    
    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:
    
     https://security.gentoo.org/glsa/202007-48
    
    Concerns?
    =========
    
    Security is a primary focus of Gentoo Linux and ensuring the
    confidentiality and security of our users' machines is of utmost
    importance to us. Any security concerns should be addressed to
    This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at
    https://bugs.gentoo.org.
    
    License
    =======
    
    Copyright 2020 Gentoo Foundation, Inc; referenced text
    belongs to its owner(s).
    
    The contents of this document are licensed under the
    Creative Commons - Attribution / Share Alike license.
    
    https://creativecommons.org/licenses/by-sa/2.5
    

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