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    CVE-2019-19203

    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.

    Published:Nov 6, 2019
    Last Modified:Nov 21, 2024
    EPS:Nov 21, 2019
    EPSS Score:0.01147
    CVSS Score:7.5

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Oniguruma Project
    Product
    Oniguruma
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Software Collections

    Exploits

    https://github.com/ManhNDd/CVE-2019-19203https://github.com/kkos/oniguruma/issues/163https://github.com/ManhNDd/CVE-2019-19203https://github.com/kkos/oniguruma/issues/163https://github.com/ManhNDd/CVE-2019-19203https://github.com/tarantula-team/CVE-2019-19203

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

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    References

    https://github.com/ManhNDd/CVE-2019-19203
    https://github.com/kkos/oniguruma/issues/163
    https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2
    https://github.com/tarantula-team/CVE-2019-19203
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/
    https://github.com/ManhNDd/CVE-2019-19203
    https://github.com/kkos/oniguruma/issues/163
    https://github.com/kkos/oniguruma/releases/tag/v6.9.4_rc2
    https://github.com/tarantula-team/CVE-2019-19203
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NO267PLHGYZSWX3XTRPKYBKD4J3YOU5V/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V3MBNW6Z4DOXSCNWGBLQ7OA3OGUJ44WL/

    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