An update for libxml2 is now available for openEuler-20.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2024-1413 Final 1.0 1.0 2024-04-12 Initial 2024-04-12 2024-04-12 openEuler SA Tool V1.0 2024-04-12 libxml2 security update An update for libxml2 is now available for openEuler-20.03-LTS-SP1. This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library. Security Fix(es): NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn't be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered.(CVE-2022-2309) An update for libxml2 is now available for openEuler-20.03-LTS-SP1. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High libxml2 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1413 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2022-2309 https://nvd.nist.gov/vuln/detail/CVE-2022-2309 openEuler-20.03-LTS-SP1 libxml2-debuginfo-2.9.10-38.oe1.aarch64.rpm libxml2-debugsource-2.9.10-38.oe1.aarch64.rpm libxml2-devel-2.9.10-38.oe1.aarch64.rpm python3-libxml2-2.9.10-38.oe1.aarch64.rpm python2-libxml2-2.9.10-38.oe1.aarch64.rpm libxml2-2.9.10-38.oe1.aarch64.rpm libxml2-help-2.9.10-38.oe1.noarch.rpm libxml2-2.9.10-38.oe1.src.rpm python2-libxml2-2.9.10-38.oe1.x86_64.rpm libxml2-devel-2.9.10-38.oe1.x86_64.rpm python3-libxml2-2.9.10-38.oe1.x86_64.rpm libxml2-debugsource-2.9.10-38.oe1.x86_64.rpm libxml2-2.9.10-38.oe1.x86_64.rpm libxml2-debuginfo-2.9.10-38.oe1.x86_64.rpm NULL Pointer Dereference allows attackers to cause a denial of service (or application crash). This only applies when lxml is used together with libxml2 2.9.10 through 2.9.14. libxml2 2.9.9 and earlier are not affected. It allows triggering crashes through forged input data, given a vulnerable code sequence in the application. The vulnerability is caused by the iterwalk function (also used by the canonicalize function). Such code shouldn t be in wide-spread use, given that parsing + iterwalk would usually be replaced with the more efficient iterparse function. However, an XML converter that serialises to C14N would also be vulnerable, for example, and there are legitimate use cases for this code sequence. If untrusted input is received (also remotely) and processed via iterwalk function, a crash can be triggered. 2024-04-12 CVE-2022-2309 openEuler-20.03-LTS-SP1 High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H libxml2 security update 2024-04-12 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1413