Test ID:	1.3.6.1.4.1.25623.1.1.2.2021.2249
Category:	Huawei EulerOS Local Security Checks
Title:	Huawei EulerOS: Security Advisory for libxml2 (EulerOS-SA-2021-2249)
Summary:	The remote host is missing an update for the Huawei EulerOS 'libxml2' package(s) announced via the EulerOS-SA-2021-2249 advisory.
Description:	Summary: The remote host is missing an update for the Huawei EulerOS 'libxml2' package(s) announced via the EulerOS-SA-2021-2249 advisory. Vulnerability Insight: There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.(CVE-2021-3516) There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.(CVE-2021-3517) There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.(CVE-2021-3518) A vulnerability found in libxml2 in versions before 2.9.11 shows that it did not propagate errors while parsing XML mixed content, causing a NULL dereference. If an untrusted XML document was parsed in recovery mode and post-validated, the flaw could be used to crash the application. The highest threat from this vulnerability is to system availability.(CVE-2021-3537) This library allows to manipulate XML files. It includes supportto read, modify and write XML and HTML files. There is DTDs supportthis includes parsing and validation even with complex DtDs, eitherat parse time or later once the document has been modified. The outputcan be a simple SAX stream or an(CVE-2021-3541) Affected Software/OS: 'libxml2' package(s) on Huawei EulerOS V2.0SP9(x86_64). Solution: Please install the updated package(s). CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-3516 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/ https://security.gentoo.org/glsa/202107-05 https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539 https://gitlab.gnome.org/GNOME/libxml2/-/issues/230 https://bugzilla.redhat.com/show_bug.cgi?id=1954225 https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html Common Vulnerability Exposure (CVE) ID: CVE-2021-3517 https://security.netapp.com/advisory/ntap-20210625-0002/ https://bugzilla.redhat.com/show_bug.cgi?id=1954232 https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E Common Vulnerability Exposure (CVE) ID: CVE-2021-3518 http://seclists.org/fulldisclosure/2021/Jul/54 http://seclists.org/fulldisclosure/2021/Jul/55 http://seclists.org/fulldisclosure/2021/Jul/58 http://seclists.org/fulldisclosure/2021/Jul/59 https://bugzilla.redhat.com/show_bug.cgi?id=1954242 Common Vulnerability Exposure (CVE) ID: CVE-2021-3537 https://bugzilla.redhat.com/show_bug.cgi?id=1956522 Common Vulnerability Exposure (CVE) ID: CVE-2021-3541 https://bugzilla.redhat.com/show_bug.cgi?id=1950515
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