UBUNTU-CVE-2019-19203

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    UBUNTU-CVE-2019-19203

    Published: 21 Nov 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-19203
    Aliases:
    USN-5662-1

    Summary:

    Details: An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function gb18030_mbc_enc_len in file gb18030.c, a UChar pointer is dereferenced without checking if it passed the end of the matched string. This leads to a heap-based buffer over-read.

    References: https://ubuntu.com/security/CVE-2019-19203, https://github.com/kkos/oniguruma/issues/163, https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2, https://ubuntu.com/security/notices/USN-5662-1, https://www.cve.org/CVERecord?id=CVE-2019-19203

    Affected packages

    Package

    Name: libonig

    Purl: pkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.9.1-1ubuntu1.1+esm3

    Affected versions

    5.9.1-1
    5.9.1-1ubuntu1
    5.9.1-1ubuntu1.1
    5.9.1-1ubuntu1.1+esm1
    5.9.1-1ubuntu1.1+esm2

    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