CLSA-2021-1640700669

    Dashboard / Vulnerabilities / CLSA-2021-1640700669

    CLSA-2021-1640700669

    Published: 28 Dec 2021Last Modified: 1 Jun 2026

    Summary: Fixed 8 CVEs in libxml2

    Details: - CVE-2021-3517.patch: validate UTF8 in xmlEncodeEntities - CVE-2021-3518.patch: fix user-after-free with 'xmllint --xinclude --dropdtd' - CVE-2021-3537.patch: propagate error in xmlParseElementChildrenContentDeclPriv - CVE-2021-3541.patch: parser fix for the billion laughs attack - CVE-2021-3516.patch: fix use-after-free with 'xmllint --html --push' - CVE-2017-8872.patch: free input buffer in xmlHaltParser - CVE-2019-20388.patch: fix memory leak in xmlSchemaValidateStream - CVE-2020-24977.patch: fix out-of-bounds read with 'xmllint --htmlout'

    References: https://errata.cloudlinux.com/ol6/CLSA-2021-1640700669.html

    Affected packages

    Package

    Name: libxml2

    Purl: pkg:rpm/tuxcare/libxml2?distro=oraclelinux-6

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.7.6-21.0.1.el6_8.1.tuxcare.ol.els1

    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
    CLSA-2021-1640700669 | CVE-DB