ALAS2-2019-1301


Amazon Linux 2 Security Advisory: ALAS-2019-1301
Advisory Release Date: 2019-09-30 22:47 Pacific
Advisory Updated Date: 2019-10-02 23:12 Pacific
Severity: Medium

Issue Overview:

xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document. (CVE-2016-4658 )

parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name. (CVE-2017-16931 )


Affected Packages:

libxml2


Issue Correction:
Run yum update libxml2 to update your system.

New Packages:
aarch64:
    libxml2-2.9.1-6.amzn2.3.3.aarch64
    libxml2-devel-2.9.1-6.amzn2.3.3.aarch64
    libxml2-static-2.9.1-6.amzn2.3.3.aarch64
    libxml2-python-2.9.1-6.amzn2.3.3.aarch64
    libxml2-debuginfo-2.9.1-6.amzn2.3.3.aarch64

i686:
    libxml2-2.9.1-6.amzn2.3.3.i686
    libxml2-devel-2.9.1-6.amzn2.3.3.i686
    libxml2-static-2.9.1-6.amzn2.3.3.i686
    libxml2-python-2.9.1-6.amzn2.3.3.i686
    libxml2-debuginfo-2.9.1-6.amzn2.3.3.i686

src:
    libxml2-2.9.1-6.amzn2.3.3.src

x86_64:
    libxml2-2.9.1-6.amzn2.3.3.x86_64
    libxml2-devel-2.9.1-6.amzn2.3.3.x86_64
    libxml2-static-2.9.1-6.amzn2.3.3.x86_64
    libxml2-python-2.9.1-6.amzn2.3.3.x86_64
    libxml2-debuginfo-2.9.1-6.amzn2.3.3.x86_64