CVE-2017-17484

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    CVE-2017-17484

    Published: 10 Dec 2017Last Modified: 8 Jul 2026

    Summary:

    Details: The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC.

    References: https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html, https://github.com/znc/znc/issues/1459, https://ssl.icu-project.org/trac/changeset/40715, https://ssl.icu-project.org/trac/ticket/13490, https://ssl.icu-project.org/trac/ticket/13510, https://ssl.icu-project.org/trac/changeset/40714, https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cpp

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    release-60-1

    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